DE102022115753A1 - Adjusting device for a vehicle, vehicle and method for operating an adjusting device - Google Patents

Abstract

An adjusting device (100) for a vehicle has a first component (200), a second component (105), a magnetorheological medium (230) and a coil (235). The first component (200) has a plurality of alternately arranged projection sections (210) and recess sections (215) along its circumference. The recess sections (215) of the first component are arranged in a first radius (225) with respect to an axis of rotation of the first component (200), wherein the projection sections (210) of the first component (200) in a second radius (220) with respect to the axis of rotation of the first component (200) are arranged. The first radius (225) is smaller than the second radius (220), with a width of each of the projection sections (210) between two adjacent recess sections (215) being at least 1.5 times as large as the difference between the first (225) and second radius (220). The magnetorheological medium (230) is designed to bring about a first resistance characteristic in a resting state and a second resistance characteristic for the rotational movement of one of the components relative to the other component in an activated state. The coil (235) is designed to generate a magnetic field.

Description

The present invention relates to an adjusting device for a vehicle, to a vehicle with an adjusting device, to a method for operating an adjusting device and to a corresponding control device.

Adjusting devices can, for example, be installed in vehicles in order to be able to adjust vehicle functions. Some such adjusting devices can have a magnetorheological medium.

Against this background, the present invention provides an improved actuator for a vehicle, an improved vehicle, an improved method for operating an actuator and an improved control device according to the main claims. Advantageous refinements result from the subclaims and the following description.

The advantages that can be achieved with the approach presented are, in particular, that an adjusting device is created with an arrangement of projection sections and recess sections, whereby the projection sections can enable a high shear force.

An actuating device for a vehicle has a first component, a second component, a magnetorheological medium and a coil. One of the components is rotatably mounted relative to the other component, with the first component being arranged on the inside and the second component on the outside. The first component has a plurality of alternately arranged projection portions and recess portions along its circumference. The recess portions of the first component are arranged at a first radius with respect to an axis of rotation of the first component, wherein the projection portions of the first component are arranged at a second radius with respect to the axis of rotation of the first component. The first radius is smaller than the second radius. A width of each of the protrusion portions between two adjacent recess portions is at least one and a half (1.5) times the difference between the first and second radii. The magnetorheological medium is arranged in a space between the first component and the second component and is designed to have a first resistance characteristic for a rotational movement of one of the components relative to the other component in a rest state and a second resistance characteristic for a rotational movement of one of the components in an activated state relative to the other component. The coil is designed to generate a magnetic field, the magnetic field being designed to cause the magnetorheological medium to be transferred between the rest state and the activated state.

The adjusting device can be a device for operating any vehicle function of the vehicle. The adjusting device can be designed as an operating device or as an actuating device or an actuator. For example, such an operating device can be operated by an occupant of the vehicle. The first component can be cylindrical or disk-shaped and made of a magnetically conductive material. The second component can be hollow cylindrical and at least partially surround the first component. The projection portions and the recess portions may be connected to the first component or formed integrally with the first component. The first radius can be understood as a minimum radius, the second radius as a maximum radius. The magnetorheological medium can be a heterogeneous mixture of magnetically polarizable particles, which can also be referred to as a magnetorheological fluid. Alternatively, the magnetorheological medium can also be a powder. When a magnetic field is applied, i.e. when a coil is energized, the magnetorheological medium solidifies. The rest state of the magnetorheological medium can be understood as a state in which no magnetic field acts on the magnetorheological medium, i.e. the coil is not energized. The activation state of the magnetorheological medium can be understood as a state in which a magnetic field acts on the magnetorheological medium, i.e. the coil is energized. The first resistance characteristic can represent a fluid mechanical resistance that is lower than a fluid mechanical resistance represented by the second resistance characteristic. By applying the external magnetic field, viscoelastic or dynamic mechanical properties of the magnetorheological medium can be changed quickly and reversibly, with a deformation of the magnetorheological medium taking place between the rest state and the activation state. Thus, the first resistance characteristic can represent a state of the magnetorheological medium in which the magnetorheological medium opposes a rotational movement of one of the components relative to the other component with a low rotational resistance, i.e. exerts a small braking torque on one component to the other component. The second resistance characteristic can indicate a state of magnetorheology represent a medium in which the magnetorheological medium opposes a rotational movement of one of the components relative to the other component with a high rotational resistance, i.e. exerts a high braking torque on one component to the other component. The coil can be an electrical component that has turns in order to generate a magnetic field when current flows.

The approach presented here can, for example, also be understood as a representation of a haptic and additionally or alternatively as a representation of a braking torque in an actuator with a magnetorheological medium by means of a disk with a wave contour or fan contour or by means of a serrated washer.

According to one embodiment, the projection portions may be shaped to exert a shear stress on the magnetorheological medium in the activated state upon rotational movement of one of the components relative to the other component. Advantageously, shear forces can act between the rotating components and the magnetorheological medium and the resistance characteristic can thus be advantageously influenced.

According to a further embodiment, each projection section can have a shear surface that is planar or has a curvature that can be adapted to a curvature of the second component. More specifically, the curvature of the shear surface can be adapted to the curvature of the inner surface of the second component. This offers the advantage that the highest possible shear load can be reliably exerted on the magnetorheological medium in the activation state in order to make it more difficult or to prevent rotation of the components of the adjusting device relative to one another in the activation state.

According to a further embodiment, the recess sections can be shaped to cause a wedge formation of the magnetorheological medium in the activated state with respect to the rotational movement of one of the components relative to the other component. Advantageously, the wedge formation can enable a reliable second resistance characteristic, which in the activated state makes it difficult or prevents rotation of the components of the adjusting device relative to one another by increasing the force.

According to a further embodiment, the projection sections and the recess sections can form a fan contour and additionally or alternatively a tooth contour and additionally or alternatively a wave contour of the first component. This offers the advantage that the projection sections and the recess sections can reliably engage in the magnetorheological medium, whereby a shear load and a wedge formation of the medium can be caused and the resistance characteristic can thus be advantageously influenced.

According to a further embodiment, the first component can be arranged rotatably relative to the second component or the second component can be arranged rotatably relative to the first component. Depending on the application, a suitable component can be designed as a rotor and the other component as a stator. For example, one of the components can be rigidly connected to a carrier or housing and the other component can be rigidly connected to an actuating element of the actuating device that can be actuated by an occupant.

According to a further embodiment, the first component can be formed as a coil support for the coil and additionally or alternatively the second component can be formed as a housing. The second component, formed as a housing, can accommodate the first component, the coil and the magnetorheological medium. Advantageously, mechanical protection of the components can thereby be made possible, whereby a longevity of the components in the housing as well as a better functioning of the components and thus of the adjusting device can be made possible. Precise and reliable storage of the components can also be achieved through the housing. The coil can be partially surrounded by the first component shaped as a coil carrier, whereby the adjusting device can be realized compactly and with a small number of individual parts.

According to a further embodiment, the adjusting device can have a reservoir for holding at least part of the magnetorheological medium in the resting state, wherein the reservoir can be formed on the first component and additionally or alternatively on the second component. Advantageously, the magnetorheological medium can be reliably accommodated in the reservoir in the resting state without having an unnecessary influence on the rotational movement.

According to a further embodiment, the reservoir on the first component can be formed axially offset with respect to the axis of rotation in relation to the projection sections and recess sections on at least one end face of the first component. Additionally or alternatively, this can Reservoir have a plurality of pockets. This offers the advantage that the magnetorheological medium for the activation state can reliably get from the pockets to the depression sections.

According to a further embodiment, the adjusting device can have an adjusting element that is connected to one of the components in a rotationally fixed manner and can be actuated by a user. The control element can be designed or designed as a rotary switch or a button.

A vehicle has an embodiment of an adjusting device mentioned herein.

A method for operating an embodiment of an actuator mentioned herein has a step of activating the coil and a step of deactivating the coil. The step of activating the coil is performed to generate a magnetic field to cause the magnetorheological medium to transfer from the rest state to the activated state to effect the second resistance characteristic for the rotation of one of the components relative to the other component. The step of deactivating the coil is performed to cause the magnetorheological medium to transfer from the activated state to the rest state to effect the first resistance characteristic for the rotational movement of one of the components relative to the other component.

This method can be implemented, for example, in software or hardware or in a mixed form of software and hardware, for example in a control device.

A control device can be an electrical device that processes electrical signals, for example sensor signals, and outputs control signals depending on them. The control device can have one or more suitable interfaces, which can be designed in hardware and/or software. In the case of a hardware design, the interfaces can, for example, be part of an integrated circuit in which functions of the control device are implemented. The interfaces can also be their own integrated circuits or at least partially consist of discrete components. In the case of software training, the interfaces can be software modules that are present, for example, on a microcontroller alongside other software modules.

Also advantageous is a computer program product with program code, which can be stored on a machine-readable medium such as a semiconductor memory, a hard drive memory or an optical memory and is used to carry out the method according to one of the embodiments described above if the program is on a computer or a device is performed.

• 1 eine Seitenansicht einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 2 eine Draufsicht einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 3 einen Ausschnitt eines Ausführungsbeispiels einer Stellvorrichtung;
• 4 eine Darstellung einer ersten Komponente einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 5 eine Draufsicht einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 6 einen Ausschnitt eines Ausführungsbeispiels einer Stellvorrichtung;
• 7 eine Darstellung einer ersten Komponente einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 8 eine Draufsicht einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 9 einen Ausschnitt eines Ausführungsbeispiels einer Stellvorrichtung;
• 10 eine Darstellung einer ersten Komponente einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 11 eine Darstellung einer Stellvorrichtung gemäß einem Ausführungsbeispiel;
• 12 einen Ausschnitt eines Ausführungsbeispiels einer Stellvorrichtung;
• 13 eine Teilschnittdarstellung eines Ausführungsbeispiels einer Stellvorrichtung;
• 14 ein Ablaufdiagramm eines Ausführungsbeispiels eines Verfahrens zum Betreiben einer Stellvorrichtung;
• 15 ein schematisches Blockschaltbild eines Ausführungsbeispiels eines Steuergeräts zum Betreiben einer Stellvorrichtung;
• 16 eine schematische Darstellung eines Ausführungsbeispiels einer Stellvorrichtung; und
• 17 eine schematische Darstellung eines Ausführungsbeispiels eines Fahrzeugs.

The invention is explained in more detail using the accompanying drawings. Show it:

• 1 a side view of an adjusting device according to an exemplary embodiment;
• 2 a top view of an adjusting device according to an exemplary embodiment;
• 3 a section of an exemplary embodiment of an adjusting device;
• 4 a representation of a first component of an adjusting device according to an exemplary embodiment;
• 5 a top view of an adjusting device according to an exemplary embodiment;
• 6 a section of an exemplary embodiment of an adjusting device;
• 7 a representation of a first component of an adjusting device according to an exemplary embodiment;
• 8th a top view of an adjusting device according to an exemplary embodiment;
• 9 a section of an exemplary embodiment of an adjusting device;
• 10 a representation of a first component of an adjusting device according to an exemplary embodiment;
• 11 a representation of an adjusting device according to an exemplary embodiment;
• 12 a section of an exemplary embodiment of an adjusting device;
• 13 a partial sectional view of an exemplary embodiment of an adjusting device;
• 14 a flowchart of an exemplary embodiment of a method for operating an adjusting device;
• 15 a schematic block diagram of an exemplary embodiment of a control device for operating an actuating device;
• 16 a schematic representation of an exemplary embodiment of an adjusting device; and
• 17 a schematic representation of an exemplary embodiment of a vehicle.

In the following description of preferred embodiments of the present invention The same or similar reference numerals are used for the elements shown in the various figures and have a similar effect, with a repeated description of these elements being omitted.

Before the preferred exemplary embodiments of the present invention are discussed below, the background and basic principles of the exemplary embodiments should first be briefly explained: In an active magnetic field caused by current applied to the coil, particles in a magnetorheological medium or fluid align themselves with the magnetic field lines. The particles of the magnetorheological medium, for example carbonyl iron powder, have a diameter of, for example, 1 to 10 micrometers. Oil, for example, is used as a carrier liquid. In an activated state, the particles form chains. A high magnetic field and a high particle concentration cause a high shear force. A medium magnetic field and a medium particle concentration cause a medium shear force and a squeezing of the magnetorheological medium, which in turn causes a wedge effect. An area with a very low magnetic field and very low particle concentration has little influence on the braking torque and thus on the haptic behavior. In conventional adjusting devices, most particles form on the front side of the wheel or the rotatable component. In an area in which a medium magnetic field is active, the wedge formation generates an increased force. The area in which a very low magnetic field acts is a “dead” space and has no functional significance because the magnetic field is too small. The larger the design of a shear surface in the area of a high magnetic field, the greater the shear forces in the gap and the torque in the rotary actuator. In the area of high magnetic fields, for example, only 14 percent of the shear forces in the gap act across the circumference.

An improved adjusting device according to exemplary embodiments will be explained in more detail with reference to the following figures.

1 shows a side view of an exemplary embodiment of an adjusting device 100 for a vehicle. The vehicle is, for example, a motor vehicle, such as a passenger car, a motorcycle, a commercial vehicle or the like. The adjusting device 100 is designed, for example, to enable a user to operate a vehicle function of the vehicle. For example, the adjusting device 100 can be operated manually by an occupant of the vehicle, e.g. B. via an actuator that is mechanically coupled to a component of the actuator 100.

The adjusting device 100 has a first component, a second component 105, a magnetorheological medium and a coil and is cylindrical or cylindrical. The first component is arranged on the inside and the second component 105 is arranged on the outside. One of the components is rotatably mounted relative to the other component. Depending on the exemplary embodiment, either the first component is rotatably mounted to the second component 105 or the second component 105 is rotatably mounted to the first component. According to the exemplary embodiment shown here, the adjusting device 100 has a shaft 110 which is designed to enable a rotational movement of the first component or the second component 105. A rotation axis 115 of the rotatably mounted component is also shown.

According to the exemplary embodiment shown here, the shaft 110 extends through the second component 105 and is mechanically coupled to the first component. The second component 105 is sealed by a first cover element 120 and a second cover element 125. The first cover element 120 is shaped, for example, as a lid and has an opening for receiving the shaft 110. The second cover element 125 is formed, for example, as a bottom and also has an opening for receiving the shaft 110, so that the shaft 110 partially protrudes from the first cover 120 and the second cover 125. The shaft 110 can be coupled, for example, to the actuating element, so that a rotational movement of the actuating element can be transferred to the shaft 110 and thus to the rotatably mounted component coupled to the shaft 110.

According to the exemplary embodiment shown here, the second component 105 is formed as a housing. The first component, the coil and the magnetorheological medium are arranged within the housing and are described in more detail in the following figures.

2 shows a top view of the exemplary embodiment of an adjusting device 100. This is the one in 1 described adjusting device or a similar adjusting device, the cover elements being omitted from the illustration.

The first component 200 is arranged on the inside and the second component 105 is arranged on the outside. Between the first component 200 and the second component 105 there is an intermediate space 205 in which magnetorheological medium 230 is arranged. The magnetorheological medium 230 is designed in order to effect a first resistance characteristic for a rotational movement of one of the components relative to the other component in a rest state and a second resistance characteristic for the rotational movement of one of the components relative to the other component in an activated state. The coil 235 is designed to generate a magnetic field, the magnetic field being designed to cause the magnetorheological medium 230 to be transferred between the rest state and the activated state.

The first component 200 has a plurality of alternately arranged projection portions 210 and recess portions 215 along its circumference. According to one embodiment, the projection portions 210 and the recess portions 215 are formed integrally with the first component 200. The magnetorheological medium 230 is arranged in the gap 205, for example between two projection sections 210 in the recess sections 215 and between the projection sections 210 and the second component 105.

The recess sections 215 of the first component 200 are arranged in a first radius 225 with respect to the axis of rotation of the first component 200. The projection portions 210 of the first component 200 are arranged in a second radius 220 with respect to the axis of rotation of the first component 200. The first radius 225 is smaller than the second radius 220, with a width of each of the projection portions 210 between two adjacent recess portions 215 being at least 1.5 times (that is, at least one and a half times) as large as the difference between the first radius 225 and the second Radius 220.

In the activated state, i.e. when the coil 235 is energized, the magnetorheological medium 230 solidifies mainly on the projection sections 210, so that the second resistance characteristic acts for the rotational movement of one of the components. In the rest state, the magnetorheological medium 230 is, for example, mainly arranged in the depression sections 210.

What is advantageous here is the geometric shape of a mechanical component or the first component 200 with a contour defined by the projection sections 210 and the recess sections 215 and corresponding wedge angles, in which a better magnetic field is expressed and thus a higher and more precise braking torque can be achieved. The contour of the first component 200 is designed as a fan, tooth or wave contour. In comparison to known adjusting devices, the first component 200 of the adjusting device has an increase in the number of teeth, an increase in the area and a removal of a pocket or dead volume. This leads to an increase in the shear forces, in this example from, for example, 14 percent to, for example, 40 percent. Depending on the exemplary embodiment, the fan, toothed or wave washer is fixed and the housing rotates or the fan, toothed or wave washer is rotating and the housing is fixed.

3 shows a section of an exemplary embodiment of an adjusting device 100. This is a section of the in 2 shown and described adjusting device or a similar adjusting device. Of the adjusting device 100 are shown in the illustration 3 the first component 200, the second component 105, the gap 205, the magnetorheological medium 230, the coil 235, the projection portions 210, the recess portions 215 and the shear surfaces 300 are shown.

Here, the projection sections 210 are shaped to exert a shear load on the magnetorheological medium 230 in the activated state during the rotational movement of one of the components relative to the other component.

According to one embodiment, each projection portion 210 has a shear surface 300 that is planar or has a curvature that is adapted to a curvature of the second component 105. When the first component 200 rotates, the shear surface 300 moves reliably along the curvature of the second component 105, thereby generating shear forces. Alternatively, when the second component 105 rotates, the curvature of the second component 105 moves along the shear surface 300. Between the shear surface 300 and that of the second component 105, the gap 205 is narrowed to a gap.

According to a further exemplary embodiment, the recess sections 225 are also shaped to cause a wedge formation of the magnetorheological medium 230 in the activated state with respect to the rotational movement of one of the components relative to the other component. The development of wedges leads to an increase in force.

4 shows a representation of a first component 200 of an adjusting device according to an exemplary embodiment. This is a first component described in the previous figures or a similar first component. For example, the first component 200 corresponds to the first component 2 or. 3 .

The first component 200, for example, has a through opening 400 in the middle, which is shaped to accommodate the shaft.

According to the exemplary embodiment shown here, the first component 200 is formed as a coil support for the coil. The first component 200 has a recess 435 in which the coil is arranged, the coil being shown in FIG 4 is omitted. The first component 200 is barrel-shaped or cylindrical, with the recess 435 being formed as a constriction in the area of the jacket.

The shape of the first component 200, which is shaped as a fan, toothed or wave disk, can be designed as follows: A thin disk, with a deep cylindrical shape and/or with a clearance or recess 435 in the middle for the coil.

5 shows a representation of an exemplary embodiment of an adjusting device 100. The in 5 The adjusting device 100 shown is similar to the adjusting device 2 , except that the projection portions 210 and the depression portions 215 have a different contour. In other words, the contour of the protrusion portions 210 and the recess portions 215 resembles a wave contour while in 2 resembles a tooth contour.

The number of the projection portions 210 and the recess portions 215 in 5 is, according to the exemplary embodiment shown here, less than the number of projection sections 210 and recess sections 215 in the previous figures. The width of each of the projection sections 210 between two adjacent recess sections 215 is larger than in the previous figures.

6 shows a section of an exemplary embodiment of an adjusting device 100. This is a section of the in 5 described adjusting device or a similar adjusting device. The representation in 6 corresponds to the representation 3 except that there are different contours and the shear surfaces 300 of the projection sections 210 in 6 have a larger area than the shear surfaces of the 3 . This results in an increase in the shear forces, for example from 14 percent to 50 percent in the exemplary embodiment shown here.

7 shows a representation of a first component 200 of an adjusting device according to an exemplary embodiment. These are the ones in 5 and or 6 shown first component or a similar first component. More precisely, it resembles the in 7 illustrated first component 200 of the first component 4 except that the protrusion portions 210 and the recess portions 215 have a different contour. In 7 they resemble a wave contour while in 4 resemble a tooth contour.

8th shows a representation of an exemplary embodiment of an adjusting device 100. The in 8th The adjusting device 100 shown is similar to the adjusting device 2 and or 5 , except that the projection portions 210 and the recess portions 215 form or have a different contour. In other words, the contour of the protrusion portions 210 and the recess portions 215 corresponds to FIG 8th a fan contour. In addition, the shear surfaces 300 of the projection sections 210 are smaller or smaller than the shear surfaces of the projection sections in the previous figures.

9 shows a section of an exemplary embodiment of an adjusting device 100. This is a section of the in 8th described adjusting device or a similar adjusting device.

10 shows a representation of a first component 200 of an adjusting device according to an exemplary embodiment. These are the ones in 8th and or 9 shown first component or a similar first component. More precisely, it resembles the in 10 illustrated first component 200 of the first component 4 and or 7 except that the protrusion portions 210 and the recess portions 215 have a different contour. In 10 they resemble a fan contour.

11 shows a representation of an adjusting device 100 according to an exemplary embodiment. This is an adjusting device shown and described in the previous figures or a similar adjusting device. In the representation of 11 the second component of the adjusting device 100 has been omitted in order to be able to show the first component 200 and the coil 235 in more detail.

The first component 200 is, for example, formed as a coil support for the coil 235. More specifically, the first component 200 has a recess into which the coil 235 is received, so that the coil 235 is arranged in the recess like a band or a cuff.

According to one exemplary embodiment, the adjusting device 100 has a reservoir 1100 for holding part of the magnetorheological medium 230 in the idle state. In the exemplary embodiment shown here, the reservoir 1100 is formed on the first component 200. According to this exemplary embodiment, the reservoir 1100 is formed on the first component 200 axially offset with respect to the axis of rotation 115 in relation to the projection sections 210 and recess sections 215 on at least one end face of the first component 200. The reservoir 1100 is, for example, formed on both end faces of the first component 200. The through opening, which is designed to partially receive the shaft 110, extends from one end face to the other end face of the first component 200. According to an alternative embodiment, the reservoir is formed on the second component.

According to an exemplary embodiment, the reservoir 1100 has a plurality of pockets 1105 in which the magnetorheological medium 230 is received in the rest state. The reservoir 1100 has a plurality of alternately arranged pockets 1105 and tongues 1110 along its circumference. The pockets 1105 are separated from each other by the tongues 1110.

12 shows a section of an exemplary embodiment of an adjusting device 100. This is the one in 11 described adjusting device or a similar adjusting device.

The pockets 1105 are arranged alternately between two tongues 1110. The tongues 1110 are arranged in the area of the projection sections 210. The pockets 1105 are arranged in the area of the recess sections 215. The pockets 1105 of the reservoir 1100 are formed at least twice as deep as the recess sections 210.

In the resting state, the particles of the magnetorheological medium 230 collect in the pockets 1105. When the coil 235 is energized, i.e. H. In the activation state, the magnetorheological medium 230 or its particles flow to the recess sections 215 of the first component 200 and solidifies there and in the area of the projection sections 210.

The pockets 1105 serve as a reservoir 1100. If no magnetic field is applied to the actuator or the adjusting device 100, all particles are evenly distributed in the filling space for the magnetorheological medium 230. By applying a magnetic field, the particles are pulled out of the reservoir 1100 due to a low field strength and are distributed in the gap between the toothed disk or first component 200 and the housing or second component 105 and in the wedge. This means that particles can be supplied in a targeted manner. A high magnetic field causes a high particle concentration and thus a high shear force.

13 shows a partial sectional view of an exemplary embodiment of an adjusting device. These are the ones in 1 adjusting device described, another adjusting device described herein or a similar adjusting device.

According to one exemplary embodiment, the shaft 110 partially protrudes from the adjusting device 100. For example, an actuating element can be connected to the shaft 110 in a rotationally fixed manner and can be actuated by a user.

According to one exemplary embodiment, the first component 200 has a recess in which the coil 235 is arranged, so that the coil 235 is arranged between the first component 200 and the second component 105. The magnetorheological medium 230 is also arranged between the first component 200 and the second component 105. The reservoir 1100 is, for example, arranged on the first component 200.

A reservoir in the form of pockets can also be represented in the housing and lid and other components. A gap in a filling space between two or more components can also be seen as a reservoir.

The formation of reservoirs serves to specifically control particles of the magnetorheological medium 230 in the magnetic field. This means that higher torques, a more precise and reproducible feel and/or braking torques are possible.

14 shows a flowchart of an exemplary embodiment of a method 1400 for operating an adjusting device. The adjusting device corresponds to or is similar to the adjusting device from one of the figures described herein. The method 1400 includes a step 1405 of activating the coil and a step 1410 of deactivating the coil.

The activating step 1405 is performed to generate a magnetic field to cause the magnetorheological medium to transfer from the rest state to the activated state. This causes the second resistance characteristic for the rotational movement of one of the components relative to the other component. The deactivation step 1410 is carried out to convert the magnetorheological Medium from the activation state to the rest state. This causes the first resistance characteristic for the rotational movement of one of the components relative to the other component.

15 shows a schematic block diagram of an exemplary embodiment of a control device 1500 for operating an adjusting device, such as the adjusting device from one of the figures described here. The control device 1500 has a unit 1505 for activating the coil and a unit 1510 for deactivating the coil. The unit 1505 for activating is designed to generate a magnetic field to cause the magnetorheological medium to be transferred from the rest state to the activated state. The deactivation unit 1510 is designed to cause the magnetorheological medium to be transferred from the activation state to the rest state.

16 shows a schematic representation of an adjusting device 100 according to an exemplary embodiment. This can be an adjusting device described in the previous figures or a similar adjusting device. The adjusting device 100 is arranged, for example, on a steering wheel 1600 of a vehicle. For example, an adjusting element 1605 is rigidly arranged on one of the components of the adjusting device 100. The actuating element 1605 can be manually actuated, more precisely rotatable, by an occupant of the vehicle by a rotary movement 1610. According to different exemplary embodiments, the adjusting element 1605 is part of the adjusting device 100 or can be coupled to the adjusting device 100.

17 shows a schematic representation of an exemplary embodiment of a vehicle 1700 with an adjusting device 100 and a control device 1500. The adjusting device 100 and the control device 1500 correspond or are similar to the adjusting device and the control device from each of the figures described above. The adjusting device 100 and the control device 1500 are capable of transmitting signals, for example electrically connected to one another.

The exemplary embodiments described and shown in the figures are only chosen as examples. Different exemplary embodiments can be combined with one another completely or with regard to individual features. An exemplary embodiment can also be supplemented by features of a further exemplary embodiment.

Furthermore, method steps according to the invention can be repeated and carried out in an order other than that described.

If an exemplary embodiment includes an “and/or” link between a first feature and a second feature, this can be read as meaning that, according to one embodiment, the exemplary embodiment has both the first feature and the second feature and, according to a further embodiment, either only the first Feature or only the second feature.

Reference symbols

100

Adjusting device

105

second component

110

Wave

115

Axis of rotation

120

first cover element

125

second cover element

200

first component

205

space

210

Projection section

215

Advanced section

220

second radius

225

first radius

230

magnetorheological medium

235

Kitchen sink

300

shear surface

400

Passage opening

435

recess

1100

reservoir

1105

Bag

1110

Tongue

1400

Method for operating an adjusting device

1405

Activation step

1410

Deactivation step

1500

Control device for operating an adjusting device

1505

Unit to activate

1510

Unit to deactivate

1600

steering wheel

1605

Control element

1610

Rotary movement of the actuating element

1700

vehicle

Claims (15)

Adjusting device (100) for a vehicle (1700), the adjusting device (100) having the following features: a first component (200) and a second component (105), one of the components being rotatably mounted relative to the other component, the first component (200) being arranged on the inside and the second component (105) on the outside, the first component (200) has a plurality of alternately arranged projection sections (210) and recess sections (215) along its circumference, the recess sections (215) of the first component (200) being in a first radius (225) with respect to an axis of rotation of the first component (200). are arranged, wherein the projection sections (210) of the first component (200) are arranged in a second radius (220) with respect to the axis of rotation of the first component (200), the first radius (225) being smaller than the second radius (220) , wherein a width of each of the projection portions (210) between two adjacent recess portions (215) is at least 1.5 times the difference between the first (225) and second radii (220); a magnetorheological medium (230) which is arranged in a space (205) between the first component (200) and the second component (105) and is designed to, in a rest state, provide a first resistance characteristic for a rotational movement of one of the components relative to the other component and in an activated state to effect a second resistance characteristic for the rotational movement of one of the components relative to the other component; and a coil (235) designed to generate a magnetic field, the magnetic field being designed to cause the magnetorheological medium (230) to be transferred between the rest state and the activated state. Adjusting device (100) according to Claim 1 , wherein the projection portions (210) are shaped to exert a shear stress on the magnetorheological medium (230) in the activated state upon rotational movement of one of the components relative to the other component. Adjusting device (100) according to one of the preceding claims, wherein each projection section (210) has a shear surface (300) which is planar or has a curvature which is adapted to a curvature of the second component (105). Actuating device (100) according to one of the preceding claims, wherein the recess sections (215) are shaped to cause a wedge formation of the magnetorheological medium (230) in the activated state with respect to the rotational movement of one of the components relative to the other component. Adjusting device (100) according to one of the preceding claims, wherein the projection sections (210) and the recess sections (215) form a fan contour and/or a tooth contour and/or a wave contour of the first component (200). Adjusting device (100) according to one of the preceding claims, wherein the first component (200) is rotatably arranged relative to the second component (105) or wherein the second component (105) is rotatably arranged relative to the first component (200). Adjusting device (100) (100) according to one of the preceding claims, wherein the first component (200) is formed as a coil support for the coil (235) and/or wherein the second component (105) is formed as a housing. Actuating device (100) according to one of the preceding claims, with a reservoir (1100) for holding at least part of the magnetorheological medium (230) in the idle state, the reservoir (1100) being attached to the first component (200) and/or the second component ( 105) is formed. Adjusting device (100) according to Claim 8 , wherein the reservoir (1100) on the first component (200) is formed axially offset with respect to the axis of rotation to the projection sections (210) and recess sections (215) on at least one end face of the first component (200) and / or wherein the reservoir (1100 ) has a plurality of pockets (1105). Adjusting device (100) according to one of the preceding claims, with an adjusting element (1605) which is connected in a rotationally fixed manner to one of the components and can be actuated by a user. Vehicle (1700) with an adjusting device (100) according to one of Claims 1 until 10 . Method (1400) for operating an actuator (100) according to one of the preceding claims, wherein the method (1400) has the following steps: activating (1405) the coil (235) to generate a magnetic field in order to transfer the magnetorheological medium (230) from the rest state to the activated state to effect to cause the second resistance characteristic to rotate one of the components relative to the other component; and deactivating (1410) the coil (235) to cause the magnetorheological medium (230) to transfer from the activated state to the rest state to effect the first resistance characteristic for the rotational movement of one of the components relative to the other component. Control device (1500), which is set up to carry out the steps of the method (1400). Claim 12 to be executed and/or controlled in appropriate units (1505, 1510). Computer program that is set up to carry out the steps (1405, 1410) of the method (1400). Claim 12 to execute and/or control. Machine-readable storage medium on which the computer program can be written Claim 14 is stored.

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