DE102016124114B3 - Door component with a controllable damper device - Google Patents

Abstract

Door component (50) having a damping device (1) accommodated in a housing (10) and containing a magnetorheological fluid (2) as working fluid with a controllable damping valve (3) and two connection units (51, 52) movable relative to one another, one of the two Connection units (51, 52) with a support structure (101) and the other of the two terminal units (51, 52) with a movable door device (53) of a vehicle (100), connectable to a movement of the door device (53) between a closed position (54) and an opening position (55) controlled to attenuate. A plurality of elongated receiving spaces (4, 5, 6) are formed in the common housing (10). A first elongate receiving space (4) is designed as a cylinder unit, in which a piston unit (7) having a piston rod (8) and a piston (9) is accommodated. In a second elongated receiving space (5), the controllable damping valve (3) is added. The first receiving space (4) and the second receiving space (5) are arranged adjacent to one another in the common housing (10).

Description

The present invention relates to a door component with a controllable damper device, in particular for a motor vehicle. In this case, the door component 2 comprises relatively movable connection units, the relative movement of which can be at least braked by at least one controllable damper device at least. In this case, one of the two connection units can be connected or connected to a supporting structure and the other of the two connection units can be connected or connected to a pivotable door device and in particular to a vehicle door.

In the prior art a variety of door components have become known, with which a targeted damping of the door movement and in particular a targeted fixing of the door in predetermined angular positions is possible. Most mechanical systems are used that are inexpensive and allow in different angular positions a determination of the door of a motor vehicle. This allows the user to bring the door in one of the angular positions, which seems suitable due to the current space situation and leave the car.

A disadvantage of this known mechanical systems, however, is that the door is fixed only in a certain number of defined angular positions. If there is less or more space available, there may not be a suitable setting.

With the DE 100 29 227 A1 discloses a controllable braking system for a hinge system for the rotatable and brakable attachment of a car door to a structure, wherein coupled sensor means, control means and braking means are provided. Sensor signals can be converted by the control means via the braking means in a braking action to a rotational movement of the car door. The braking means have two relatively movable components and the relative movement is inhibited by a magnetorheological fluid, which is arranged in a cylindrical gap between the components and a magnetic field can be exposed. It is braked by shear forces (English: "shear mode"). The disadvantage is that the size of the braking torque is limited limited by the cylindrical shear gap, whereby large gap surfaces are needed.

Basically, also magnetorheological damper become known, which can muster higher damping forces with the same volume of construction via a valve. For example, the EP 2 886 433 A1 a suspension control for a two-wheeler, in which a magnetorheological damper is included with a damping valve.

In the unpublished PCT / EP2016 / 067474 describes a system in which a one-way circuit of a magnetorheological fluid is used to control a movement of a door controlled by opening and / or closing. This system allows a high maximum damping force, while at the same time the door is preloaded only by very small forces in the open or closed position. This is because a compensating volume for plunging the piston rod on the low pressure side is connected to the one-way circuit. However, a disadvantage of this system is the high space requirement for the piston / cylinder unit, the damping valve and the compensation volume, which is often not available.

There have also been developed door components with magnetorheological dampers in which a piston / cylinder unit is used and wherein the damping valve is accommodated in the piston. A compensation chamber is provided by a separating piston in the cylinder unit. As a result, less space is needed. The disadvantage, however, is that a higher force preloaded the door in one direction or the other.

It is therefore the object of the present invention to provide a door component with a damper device which has at least one improved property.

This object is achieved by a door component having the features of claim 1. Preferred developments of the invention are the subject of the dependent claims. Further advantages and features of the present invention will become apparent from the general description and the description of the embodiment.

A door component according to the invention has a damper device accommodated in a housing and containing a magnetorheological fluid as the working fluid, with a controllable damping valve and two connecting units movable relative to one another. In this case, one of the two connection units with a support structure and the other of the two terminal units with a movable door device in particular a vehicle connected to at least partially attenuate a movement of the door device between a closed position and an open position. In this case, a plurality of elongated receiving spaces (together) in the (common) housing is formed. A first (elongated) receiving space is formed as a cylinder unit, in which a piston rod and a Piston having piston unit is received. In a second (elongated) receiving space, the controllable damping valve is added. In this case, the first receiving space and the second receiving space are arranged adjacent to each other in the (common) housing.

The invention has many advantages. A significant advantage of the door component according to the invention is that there is less space required. Characterized in that at least two receiving spaces are arranged adjacent to each other in the housing, the overall length can be significantly reduced. The fact that the two receiving spaces are formed in a common housing, the required space can be further reduced. While in the prior art, the piston / cylinder unit is arranged axially adjacent to the damping valve, in the invention, the receiving space for the piston unit and the receiving space for the damping valve are arranged laterally adjacent to each other, whereby a considerably shorter embodiments is possible.

Long stretched here means an elongated design. The receiving spaces are much longer than wide. The receiving spaces preferably extend substantially in the direction of the housing and in particular approximately parallel thereto.

The receiving space or the receiving spaces form cavities in the housing and can be introduced, for example, by drilling into the housing. It is possible and preferred, however, that the housing is produced by a casting process, in which the receiving spaces are formed directly during casting. If necessary, some or some surfaces will be reworked. For example, the piston running surface or sealing surfaces can be reworked.

Preferably, the receiving spaces are approximately or substantially aligned parallel to each other, but also a slight angle of up to 10 or 15 ° between the individual receiving spaces is possible.

Particularly preferably, the door device is designed as a door and is pivotally accommodated on the supporting structure. In such embodiments, the door device may be referred to as a door. It is also possible, for example, to attenuate a tailgate, a trunk lid or a bonnet as a door device during the opening and / or closing movement on a vehicle. Although the term "door" is usually used hereinafter, the term can also be replaced by the term "door device" or by "flap" or "cover".

It is also possible to use a sliding door as a movable door device. Then a targeted damping of the movement can take place over a part of the opening or closing path or over the entire closing path or at defined points.

The term "dampening" here is to be understood as a damping of a movement, which can also be referred to as braking. This means that the damper device can also be referred to as a braking device. The damping of the movement can lead to a fixation of the relatively movable connection units and thus the pivotable or pivotable door, so that the door device is fixed in a certain angular position and from there only by a particularly large force that exceeds the maximum force of the damper device moves away can be.

Preferably, it is possible to block the movement of the terminal units to each other controlled by the damper device.

Preferably, the housing extends from a first end to a second end and a lid is attached to the first end of the housing. A connection of the lid with the housing can be made via common connection methods and connecting devices. For example, the lid may be fastened to the housing via rivets or screws or the like. Preferably, the lid closes at least the first and / or the second receiving space. It is also possible that the lid closes even more receiving spaces. Preferably, the corresponding receiving spaces are accessible after removal of the lid from the first end.

In preferred developments, in each case a channel is provided in end regions of the first receiving space, in particular transversely to the longitudinal extent of the housing, and connects the first and the second receiving space to one another. In simple embodiments, at least one channel can be designed as a transverse bore or rectangular channel. Preferably, the channel or a transverse bore is provided at the second end of the housing. Such a channel or such a transverse bore can be accessible from the outside and closed during operation by, for example, a screw cap.

Preferably, a diameter of the piston rod is greater than 1/2 or greater than 2/3 or even greater than 3/4 of the diameter of the piston. With a relatively large diameter of the piston rod, a high kink protection is achieved, so that even at high unexpected forces the Door component remains functional. Very thin piston rods may not be able to dissipate the forces as planned.

In all embodiments, it is particularly preferred that the piston can flow working fluid through the piston in only one direction and to this end comprises one or at least one one-way valve. A piston equipped with a one-way valve is simple in design and usually maintenance-free. Such a configuration also allows a one-way circulation, in which act in both directions of movement of the door device only low biasing forces.

In preferred embodiments, an end stop damping is mounted on the piston rod adjacent to the piston. Preferably, the one-way valve is disposed axially between the end stop damping and the piston.

In all embodiments, it is preferred that in the end region of the first receiving space, which is arranged closer to the second end of the housing, a push-in piston is mounted with a one-way valve. Preferably, the insertion piston is stationary during operation and allows the flow of the magnetorheological fluid in one direction only. Flow in the other direction is preferably blocked. Particularly preferably, the one-way valves are installed in the insertion piston and the piston of the piston unit in a different orientation, so that inflowing through the insertion piston magnetorheological fluid in the flow direction can not flow through the piston of the piston unit.

Particularly preferably, at least one one-way valve is designed as a shim valve. Preferably, at least one (and in particular both) one-way valve is equipped with a stop for limiting a maximum opening. Such a stop may consist of a thicker sheet and thus form a mechanical stop which limits the maximum opening of the one-way valve and protects the shim valve from damage.

In all embodiments, it is preferred that the damping valve is arranged in the second receiving space. The damping valve in particular comprises at least one electrical coil, at least one core and at least one damping gap. Preferably, two damping gaps or at least two damping gaps are formed on the damping valve. The electrical coil or the windings of the electrical coil preferably have an axis transverse to the longitudinal extent of the second receiving space. This means that the axis of the electrical coil is preferably aligned transversely to a longitudinal axis of the housing. Preferably, the damping valve is poured into a potting compound and pressed into the second receiving space.

In preferred developments, a third receiving space is formed in the housing, in which a compensation device for a volume of the piston rod is arranged. The compensating device serves to compensate for the volume of the piston rod which dips into the cylinder unit. Preferably, the compensation device is also used for temperature compensation and / or leakage compensation.

In all embodiments, it is preferred that the compensation device comprises a compressible compensation volume which is divided off via a variable wall. Such a variable wall is preferably formed as an elastic wall and may for example at least partially made of rubber or rubber-like material. But it is also possible that the variable-location wall is provided by a separating piston, which is arranged in the third receiving space and divides a variable compensation volume.

In all embodiments, it is preferred that the compensation volume is connected to a low-pressure side of the damping valve. As a result, relatively low biasing forces are generated in one direction or the other.

In all embodiments, it is particularly preferred that the third receiving space is arranged adjacent to the first and / or the second receiving space. Such a configuration allows a particularly compact structure, whereby a particularly small overall length can be achieved. Due to the fact that all three receiving spaces are arranged adjacent to one another in the housing, overall small dimensions are achieved.

Preferably, the first and the second receiving space extend over more than half and in particular more than 2/3 or more than 3/4 of the length of the housing. Such an elongate second receiving space is very advantageous, in particular if the damping valve is arranged therein. Preferably, the damping valve itself extends over a substantial part of the length of the second receiving space. Preferably, the damping valve extends over substantially the entire length of the second receiving space. Preferably, the damping valve and in particular the at least one damping channel formed therein is at least half as long as the housing. In particular, the damping channel has 2/3 or more than 3/4 of the length of the housing.

In such an embodiment, a very long damping gap or damping channel is provided. As a result, very high damping forces can be realized.

This makes it possible to increase the height of the damping channel, whereby the basic friction is reduced accordingly. The basic friction depends on the height of the damping channel, so that, for example, a doubling of the height of the damping channel a very significant reduction in the basic friction is achieved.

As a result, a high temperature range can be provided as a working area, so that the door component can ensure reliable operation between minus 40 ° C and plus 50 ° or plus 60 ° C. At a low negative temperature of, for example, minus 40 ° C., the viscosity of the magnetorheological fluid used is low, so that significantly increased properties can be achieved by increasing the channel height of the damping channel. Although an increase in the height of the damping channel, the maximum force is reduced, but since the damping channel can be made extremely long and since its length is limited only by the necessary stroke of the piston unit, a more than sufficient damping force can be provided.

In all embodiments, it is preferred that a connection unit is formed by a condyle on the piston rod and / or that a connection unit is designed as a swivel receptacle on the housing.

In all embodiments, it is preferred that the damper device comprises at least one sensor device. It is also possible that several different or similar sensors are provided. The sensor device preferably comprises a friction wheel with which a measure of a relative movement of the two connection units relative to one another can be detected. It is possible and preferred that a part of the sensor device is attached to the piston rod or is integrated in the piston rod. For example, optical or magnetic or other elements may be distributed in a structured manner on or in the piston rod, so that a measure of a relative position of the two connection units relative to one another can be derived by detecting the structure.

In simple embodiments, a sensor device or at least one sensor device comprises a friction wheel, which rests on the piston rod and with which a measure of a relative movement of the two connection units relative to each other can be detected.

In preferred developments, at least one near field sensor is associated to detect obstacles in the environment.

It is preferred that the compensating volume is accessible from the outside via a filling valve in order to fill air or nitrogen or another suitable medium into the compensating volume, if required. It is also possible and preferred to tightly close the filling opening after the first filling.

Preferably, the third receiving space in the second end region is connected closer to the second end via the channel with the first receiving space and / or the second receiving space.

Preferably, the damping channel is exposed to a variable magnetic field, so that the flow resistance of the damping channel and thus a damping of the damper device can be influenced via the magnetic field in the damping channel.

The piston unit or the piston of the piston unit divides the volume of the first receiving space into a first chamber and a second chamber. Preferably, the first chamber of the two chambers is connected to the inlet of the damping valve and the outlet of the damping valve via a second one-way valve to the second chamber, so that a one-way circuit for the magnetorheological fluid results. Depending on whether the piston unit dips into the cylinder unit or emerges from the cylinder unit, magnetorheological fluid is introduced into the third chamber or discharged from the third chamber.

The invention provides an advantageous door component, which in particular has a one-way circulation for the magnetorheological fluid. The fact that a plurality of receiving spaces in the housing adjacent to each other or approximately parallel or even parallel to each other, a small space can be realized, which is optimized for installation in a vehicle door.

Mostly there is a very limited space in a door of a passenger car, since there are other components must be arranged and, for example, the side window to be lowered.

The invention uses an MRF damper with a damping valve, in which preferably the concept of the one-way circuit is used. The damper device or the housing of the damper device builds axially very short. The damper device is very stiff in both directions of movement and works in preferred embodiments a low pressure compensation. The height is also relatively low, although 3 receiving spaces adjacent to each other and are arranged one above the other. An advantage here is that the receiving spaces are formed in the common housing.

The functional areas of the piston unit, the damping valve and the particular cylindrical compensating cylinder are preferably arranged one above the other and therefore build very narrow in width. It can be provided a long stroke and with a correspondingly long damping valve, the basic hydraulic friction can be greatly reduced by doubling the gap height, for example, while the gap length is also doubled. As a result, in principle, a quarter of the hydraulic basic friction can be achieved while the maximum force remains unchanged. This also low base friction at high negative temperatures of, for example, minus 40 ° C can be achieved.

The compensation device provides a sufficiently large compensation volume available, so that even with completely retracted piston rod, the pressure in the compensation volume increases only slightly. This is also advantageous for a low base friction.

In the invention, it is possible to concentrate a large part of the complexity on the housing, while the other components are constructed relatively rudimentary.

The MRF valve unit is preferably designed with a core and a revolving coil winding. Since there is a lot of length in the axial direction, since the axial length is limited only by the stroke, an axial engagement of the coil is not necessary. In particular, the structure of core and coil winding is coated with a potting material, which provides economic advantages in the production. During production, the damping valve is finally pressed into the second receiving space of the housing, so that no creeping of the magnetorheological fluid is possible.

In the housing 3 cylinder areas for the piston unit, for the damping valve and the compensation device are preferably formed. These 3 receiving spaces or areas are preferably connected to each other in the rear part or at the second end by a channel formed as a blind hole. The blind hole preferably also serves as a filling opening. The housing is preferably generated by casting and is in particular mechanically reworked only in the special necessary areas.

Preferably, the piston running surface has a corresponding accuracy in order to realize a dynamic sealing. The face region also preferably must meet certain surface specifications to guarantee static sealing and also to properly guide and position the piston assembly. Also on the storage, which holds the housing and dissipates the entire axial force to the door, a precise mechanical geometry is preferably provided. The lid is held axially in particular via rivets or screws or the like. For 2, 3, 4 or more holes can be provided, with which the lid is screwed accordingly.

At least one seal is preferably provided in the lid or on the lid in order to seal the individual receiving spaces to the outside. As seals, for example, O-rings or gaskets etc. can be used. Preferably, each receiving space is sealed individually. In particular, at least the high-pressure region and the low-pressure region are sealed separately.

For better positioning of the lid, the lid may have a flange and / or a guide collar. In order to guide the damping valve or its power supply close to the outside, is preferably carried out in the interior of the flange still a seal by means of an O-ring on a cylinder pin. In particular, a VG5 valve threaded bore or another valve threaded bore is provided in the upper region in order to bias the diaphragm by means of the air valve and thus to realize the compensation.

In particular, the piston has a circumferential guide ring, which on the one hand ensures a certain management work and on the other hand blocks the pressure almost static and dynamic between the two pressure chambers or chamber and thus acts as a seal. The piston has communication bores or at least one channel, which is closed by a one-way valve and in particular a Shim direction dependent.

In addition to the one-way valve, an end stop is arranged on the piston rod, which is responsible for the axial extension of the maximum extension. So that it does not come here to strong force peaks dynamically, this is preferably equipped with a damping element. The piston rod is sealed to the outside. The piston rod requires high quality surface roughness and hardness specifications. Preferably, the piston rod made of steel is hard chrome plated. The rod end connected to the piston rod is rotatably mounted in the body and transmits the existing axial forces from the door to the body.

The first one-way valve is designed in particular as a shim. The second one-way valve also preferably includes a shim. Both one-way valve are preferably equipped with an end stop, which ensures a predetermined maximum bending of the shims. It is also possible to use the spring-loaded ball valves.

Preferably, the compensation device comprises a plastic membrane, which is generously dimensioned to ensure the entire compensation of piston rod, temperature and possible leakage without loss of function. The plastic diaphragm deforms accordingly during operation and seals gas and magnetorheological fluid on both sides of the rear collar via housing and cover. The gas filling is realized via the valve contained in the cover and biases the system preferably at about 5 to 10 bar. It is also possible to use two seals.

When the damper device moves together, pressure is generated in the pressure stage. Due to this pressure, the one-way valve in the push-in piston closes and opens the one-way valve in the piston so that the entire piston volume flows via the communication ports or channels in the piston to the rebound side - thus, almost equal pressure prevails in both chambers. Finally, the plunging piston rod volume passes through the damping valve. A backflow into the pressure stage is not possible due to the closed one-way valve on the push-in piston and it is thus the compensation volume is compressed directly around the submerged piston rod volume. The resulting damper force is calculated from the barrier pressure multiplied by the piston rod area.

If the damper is stressed and pulled apart, the one-way valves switch in the same direction. By applying the rebound, the one-way valve in the piston closes and the entire annular volume of the piston is forced through the damping valve. At the same time, the one-way valve in the push-in piston opens and allows a return flow of the magnetorheological fluid from the damping valve and from the equalizing volume into the second chamber. The resulting damper force is calculated from the barrier pressure multiplied by the piston ring surface. The ratio of forces from tensile to compression can be optimally adapted to the application.

In all embodiments, it is preferred that a sensor device comprises a friction wheel or a roller or a rubber wheel, which contacts the piston rod and is set in rotation in a method of the piston rod. A rotary encoder connected to the friction wheel detects the movement and transmits it to the electronics.

It is also possible that sensor parts or sensors are integrated into the piston rod. For example, can be installed in the piston rod, a magnetic stack, which is evaluated by an external sensor to determine a position.

Alternatively or additionally, a rotary encoder can be provided in door hinges, a longitudinal transmitter between door handle and door or a near field sensor. In addition, the door movement can be monitored.

Further advantages will become apparent from the description of the embodiment, which will be explained below with reference to the accompanying figures.

In the figures show:

1 a highly schematic plan view of a motor vehicle with a door component according to the invention;

2 a schematic perspective view of a door component;

3 a schematic cross section through the housing of the door component according to 2 ;

4 a cross section through the door component according to 2 ;

5 a longitudinal section through the door component after 2 ; and

6 a horizontal section through the door component after 2 ,

1 shows a schematic plan view of a holding on a roadside motor vehicle 100 in which here are two doors designed as doors 53 are provided, both of which are open. The doors are each approximately in an angular position 56 , The doors are each part of a door component 50 Here are the doors 53 includes. It is also possible that to the door component 50 a door 53 is attached. The door component 50 in any case comprises connection units 51 and 52 for connection to the supporting structure 101 of the vehicle 100 or at the door 53 to pivot the door to the supporting structure 101 take. Hatched is a door 53 in the closed position 54 in which the door here is flush with the vehicle.

2 shows a schematic perspective view of the door component 1 of the vehicle 100 out 1 , The door component 50 includes a housing 10 in which the damper device 1 is arranged. The housing 10 extends from a first end 11 to a second end 12 , At the first end 11 is about screws 14 a lid 13 with the housing 10 screwed. The housing 10 extends over a length 26 essentially by the necessary stroke of the piston unit 7 conditional. The door component 50 has two connection units 51 and 52 , wherein the connection unit 51 as a condyle 27 is formed and articulated with the piston rod 8th connected is. The connection unit 52 is about a swivel mount 28 pivotable with the housing 10 connected.

At the second end 12 is the screw cap 40 to recognize, can be filled via the magnetorheological fluid into the interior.

3 shows a cross section through the housing 10 the door component 50 , In the illustration according to 3 are the three recording rooms 4 . 5 and 6 to recognize the adjacent to each other in the housing 10 are arranged. The three recording rooms 4 to 6 can be aligned parallel to each other. However, it may also be provided small angle between the adjacent receiving spaces. Here, all three receiving spaces are formed substantially cylindrical. In that area 15 near the end 11 of the housing 10 are the first recording room 4 and the second recording room 5 over a canal 17 connected with each other. Likewise, at the second end 12 in the end area 16 the first recording room 4 and the second recording room 5 over the canal 18 connected with each other. The channel 18 or an associated channel also extends into the third receiving space, so that at the end region 16 all three recording rooms across the canal 18 connected to each other.

4 shows a vertical section through the door component 50 , here all three recording rooms 4 . 5 and 6 are shown in section. In the recording room 5 is the damping valve 3 to recognize, which here a kernel 36 and an electric coil wound around it 35 includes. An axis of the coil extends horizontally through the core here 36 , There are two damping channels 38 at this right and left edge of the damping valve 3 educated. In the recording room 4 you can see the cut piston rod. In the recording room 6 is the equalizer 30 with the compensation volume 31 visible, noticeable. 5 shows a vertical longitudinal section through the door component 50 in which the three recording rooms 4 . 5 and 6 can be seen in section.

The recording rooms 4 and 5 extend essentially over the entire length 26 of the housing 10 , In the recording room 4 is the piston unit 7 with the piston rod 8th and the piston 9 added. The inner wall of the recording room 4 serves as a running surface for the piston 9 , Exemplary is magnetorheological fluid 2 located. In the second end area 16 of the first recording room 4 is a push-in piston 24 to recognize. The insertion piston 24 will be in the end area during assembly 16 jammed. At the push-in piston 24 At least one channel is formed as a flow-through opening and is selectively through the one-way valve 22 locked. In the flask 9 is a one-way valve 21 contain.

The damping valve 3 has a core 36 to which the coil 35 is wound. damping channels 38 are also visible. Also the damping valve 3 here extends over essentially the complete available length 26 of the housing 10 ,

The door component 50 will be at the end of the piston rod 8th about a condyle 27 kept flexible. The other connection unit is by a swivel mount 28 realized, which is also arranged closer to the first end of the housing as a second end of the housing here. This will cause a slight pivoting of the housing 10 reached.

6 shows a horizontal section through the door component 50 to 2 , Here is only the first recording room 4 to see in section. At the second end 12 of the recording room 4 is the insertion piston 24 attached, the one-way valve 22 includes. The other one-way valve 21 is between the piston 9 and the end stop damping 23 to recognize. The piston 9 divides the volume of the recording room 4 in a first chamber 33 and a second chamber 34 ,

Exemplary is in 6 a sensor device 29 shown, which is designed as a friction wheel and in rotationally fixed contact with the piston rod 8th stands. As a result, during a displacement of the piston rod via the sensor device 29 a corresponding change in angle can be detected, so that the current position can be evaluated at any time. Alternatively or in addition to this is in 5 a sensor device 29 represented a structure 39 on the piston rod 8th evaluates to perform a position determination in the axial direction. The structure can 39 For example, have a magnetic stack, by the sensor device 29 is detected to determine a relative position or an absolute position of the piston rod based on the detected signal.

LIST OF REFERENCE NUMBERS

1

 damper device

2

MRF

3

damping valve

4

accommodation space

5

 accommodation space

6

accommodation space

7

 piston unit

8th

 piston rod

9

piston

10

 casing

11

 first end

12

 second end

13

 cover

14

 screw

15

End of 4 closer 11

16

End of 4 closer 12

17

 channel

51

 connection unit

18

 channel

19

diameter of 8th

20

diameter of 9

21

One-way valve in 9

22

One-way valve in 4

23

 end stop damping

24

 insert piston

25

Stop by 22

26

length of 10

27

 joint head

28

 swivel mount

29

 sensor device

30

 balancer

31

 compensating volume

32

 variable wall

33

 first chamber

35

 electric coil

34

 second chamber

36

 core

37

 potting compound

38

 damping channel

39

 Structure, magnetic stack

40

Screw cap from 18

50

 door component

52

 connection unit

53

 door means

54

 closed position

55

 open position

56

 angular position

60

 near field

100

 vehicle

101

 supporting structure

Claims (21)

Door component ( 50 ) with one in a housing ( 10 ) and a magnetorheological fluid ( 2 ) as a working fluid-containing damper device ( 1 ) with a controllable damping valve ( 3 ) and two relatively movable connection units ( 51 . 52 ), one of the two connection units ( 51 . 52 ) with a supporting structure ( 101 ) and the other of the two connection units ( 51 . 52 ) with a movable door device ( 53 ), in particular a vehicle ( 100 ), is connectable to a movement of the door device ( 53 ) at least partially between a closed position ( 54 ) and an open position ( 55 ) controlled, characterized in that a plurality of elongated receiving spaces ( 4 . 5 . 6 ) in the housing ( 10 ), of which a first receiving space ( 4 ) is formed as a cylinder unit, in which a piston rod ( 8th ) and a piston ( 9 ) having piston unit ( 7 ) and of which in a second recording room ( 5 ) the controllable damping valve ( 3 ) and wherein the first recording room ( 4 ) and the second recording room ( 5 ) adjacent to each other in the housing ( 10 ) are arranged. Door component ( 50 ) according to the preceding claim, wherein the housing ( 10 ) from a first end ( 11 ) to a second end ( 12 ) and wherein at the first end ( 11 ) of the housing ( 10 ) a lid ( 13 ) is attached. Door component ( 50 ) according to one of the preceding claims, wherein in end regions ( 15 . 16 ) of the first recording room ( 4 ) one channel each ( 17 . 18 ) the first and the second recording room ( 4 . 5 ) connects to each other. Door component ( 50 ) according to one of the preceding claims, wherein a diameter ( 19 ) of the piston rod ( 8th ) greater than 1/2 or greater than 2/3 of the diameter ( 20 ) of the piston ( 9 ). Door component ( 50 ) according to any one of the preceding claims, wherein the piston ( 9 ) only in one direction working fluid through the piston ( 9 ) and a one-way valve ( 21 ). Door component ( 50 ) according to the preceding claim, wherein adjacent to the piston ( 9 ) an end stop damping ( 23 ) on the piston rod ( 8th ) and wherein the one-way valve ( 21 ) axially between the end stop damping ( 23 ) and the piston ( 9 ) is arranged. Door component ( 50 ) according to one of the preceding claims, wherein in the end region ( 16 ) of the first recording room ( 4 ) closer to the second end ( 12 ) of the housing ( 10 ) an insertion piston ( 24 ) with a one-way valve ( 22 ) is attached. Door component ( 50 ) according to one of the three preceding claims, wherein at least one one-way valve ( 21 . 22 ) is designed as a shim valve and a stop ( 25 ) to limit a maximum opening. Door component ( 50 ) according to one of the preceding claims, wherein the damping valve ( 3 ) is arranged in the second receiving space. Door component ( 50 ) according to the preceding claim, wherein the damping valve at least one electrical coil ( 35 ), a core and a damping gap. Door component ( 50 ) according to the preceding claim, wherein the electrical coil has an axis transverse to the longitudinal extension of the second receiving space. Door component ( 50 ) according to one of the preceding claims, wherein in the housing a third receiving space ( 6 ) is formed, in which a compensation device ( 30 ) for a volume of the piston rod ( 8th ) and / or a temperature compensation and / or leakage compensation is arranged. Door component ( 50 ) according to the preceding claim, wherein the compensation device ( 30 ) a compressible equalization volume ( 31 ), which via a variable wall ( 32 ) is divided. Door component ( 50 ) according to one of the two preceding claims, wherein the compensation volume ( 31 ) with a low pressure side of the damping valve ( 3 ) connected is. Door component ( 50 ) according to one of the three preceding claims, wherein the third receiving space ( 6 ) adjacent to the first and / or the second receiving space ( 4 . 5 ) is arranged. Door component ( 50 ) according to one of the preceding claims, wherein the first and the second receiving space ( 4 . 5 ) over more than 2/3 or more than 3/4 of the length ( 26 ) of the housing ( 10 ) or wherein the first, second and third recording spaces ( 4 . 5 . 6 ) over more than 1/2 of the length ( 26 ) of the housing. Door component ( 50 ) according to one of the preceding claims, wherein a connection unit ( 51 ) by a condyle ( 27 ) on the piston rod ( 8th ) and wherein the other connection unit ( 52 ) as a swivel mount ( 28 ) is formed on the housing. Door component ( 50 ) according to one of the preceding claims, wherein the damper device ( 1 ) at least one sensor device ( 29 ). Door component ( 50 ) according to the preceding claim, wherein the sensor device ( 29 ) comprises a friction wheel, with which a measure of a relative movement of the two connection units ( 51 . 52 ) is detectable to each other. Door component ( 50 ) according to one of the two preceding claims, wherein a part of the sensor device ( 29 ) is attached to the piston rod. Door component according to one of the preceding claims, wherein at least one near-field sensor ( 60 ) to detect obstacles in the environment.

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