Operating device of a motor vehicle and motor vehicle

Abstract

Operating device (10) of a motor vehicle, comprising an operating element (11) and a rolling track (12) for the operating element (11), wherein a magnetic attraction exists between the operating element (11) and the rolling track (12), wherein the operating element (11) can be displaced along the rolling track (12) from a stable rest position via at least one stable or unstable intermediate position towards at least one stable or unstable end position for operation, and wherein the rolling track (12) has several mutually angled surface sections (14, 15, 16) with instantaneous centers of rotation (17, 18, 19, 20) formed at the ends of the surface sections (14, 15, 16), such that the operating element (11) is moved relative to the rolling track (12) about the instantaneous centers of rotation (17, 18, 19, 20), which are spaced apart from each other in the direction of rolling movement. has a swiveling function.

Description

[0001] The invention relates to a control device for a motor vehicle, specifically a control device with a control element which, for operation, can be moved from a stable rest position via at least one stable or unstable intermediate position towards at least one stable or unstable end position. The invention further relates to a motor vehicle with such a control device.

[0002] If only the resting position is stable, the operating device is a monostable operating device. If at least one intermediate position and / or at least one end position is also stable, then the operating device is a multistable operating device.

[0003] WO 2021 / 127 325 A1 and WO 2021 / 168 395 A1 each disclose monostable operating devices for gear selection in a motor vehicle. In WO 2021 / 127 325 A1, the operating device has a control element designed as a rotary control, which has a monostable zero position generated by a spring element. From this monostable zero position, the control element can be moved in two directions. The gear selection element of WO 2021 / 168 395 A1 also has a monostable zero position, which is achieved by spring elements. Here, too, the control element can be moved in two directions.

[0004] DE 10 2018 209 552 A1 discloses a portable control element for a control device for a cooking appliance. A control part of the control element is magnetically held on a base unit of the control element and can be tilted along an uneven surface of the base unit. The uneven surface can have a frustoconical, conical, cylindrical, or dome-shaped area.

[0005] CN 111 828 606 A, CN 109 707 839 A and CN 211 820 697 U disclose further gear selection elements of a motor vehicle.

[0006] In order to provide a particularly high-quality operating device, the control element must, on the one hand, provide high-quality, in particular crisp and precise, haptic feedback when moving from its rest position to the respective intermediate and final positions, and on the other hand, it should exhibit little friction and little play in the rest position.

[0007] So far, it has been difficult to provide high-quality, especially crisp and precise, haptic feedback while simultaneously having low friction and little play in the resting position.

[0008] There is a need for a motor vehicle control device with a control element that provides high-quality, in particular crisp and precise, haptic feedback in its respective intermediate and end positions, with low friction and little play in the rest position.

[0009] The object of the invention is to provide a novel operating device for a motor vehicle and a motor vehicle with such an operating device. This object is achieved by an operating device according to claim 1 and by a motor vehicle according to claim 14.

[0010] The operating device according to the invention comprises an operating element and a rolling track for the operating element, wherein a magnetic attraction exists between the operating element and the rolling track. For operation, the operating element can be moved along the rolling track from a stable rest position, via at least one stable or unstable intermediate position, towards at least one stable or unstable end position. The rolling track has several surface sections angled relative to each other, with instantaneous centers of rotation formed at the ends of the surface sections, such that the operating element can pivot relative to the rolling track about the instantaneous centers of rotation, the latter being spaced apart from each other in the direction of rolling movement.The operating device according to the invention provides high-quality, in particular crisp and precise, haptic feedback, namely when the operating element reaches the respective intermediate position as well as the respective end position, with low friction between the operating element and the rolling track and little play in the rest position.

[0011] Preferably, the control element can be moved along the rolling track in two opposite directions from its rest position, via at least one intermediate position, towards a respective end position. This is preferred to allow the control element to be moved symmetrically from its rest position to each intermediate and end position.

[0012] Preferably, the control element is monostable, wherein only the rest position is stable and the intermediate position(s) and the end position(s) are unstable, and the control element automatically returns to its stable rest position from the unstable end position and from the unstable intermediate position. The invention is preferably used with monostable control elements and thus control devices in which only the rest position of the control element is stable.

[0013] Preferably, a first surface section of the rolling track interacts with a first counter-surface section of the control element to roll and thus pivot the first counter-surface section of the control element around a first instantaneous pole of the first surface section of the rolling track, which is arranged at a front end of the first surface section in the direction of rolling movement, when the control element is moved from the rest position to an intermediate position.A second surface section of the rolling track, arranged in the direction of rolling movement after the first surface section and the first instantaneous center of rotation, interacts with a second counter-surface section of the control element to roll and thus pivot the second counter-surface section of the control element around a second instantaneous center of rotation of the second surface section of the rolling track, which is located at a leading end of the second surface section in the direction of rolling movement, when the control element is moved from an intermediate position to another intermediate position or to an end position. This design is particularly preferred for providing high-quality, especially crisp and precise, haptic feedback with low friction and minimal play in the rest position.

[0014] In the rest position, the first surface section of the rolling track rests flush and without play against the first opposing surface section of the control element. When the control element is moved from the rest position to the intermediate position, the first opposing surface section of the control element rolls around the first instantaneous center of rotation of the first surface section of the rolling track and is thereby increasingly lifted away from the first surface section. In the intermediate position, the second surface section of the rolling track rests flush and without play against the second opposing surface section of the control element. When the control element is moved from the intermediate position to the next intermediate position or the final position, the second opposing surface section of the control element rolls around the second instantaneous center of rotation of the second surface section of the rolling track and is thereby increasingly lifted away from the second surface section.This design is particularly preferred for providing high-quality, especially crisp and precise, haptic feedback with low friction and minimal play in the resting position.

[0015] Preferably, a control lever engages the control element or the control element forms a control lever, wherein the control lever is a gear selector lever of an automatic transmission or a direction selector lever, in particular a shift-by-wire control lever. The invention is preferably used with gear selectors of an automatic transmission or also with direction selectors.

[0016] Preferred embodiments of the invention are described in the dependent claims and the following description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being limited thereto. The drawing shows: Fig. 1 an operating device according to the invention of a motor vehicle comprising a control element and a rolling cam, wherein the control element assumes a rest position; Fig. 2 the operating device according to the invention Fig. 1, where the control unit occupies an intermediate position; Fig. 3 the operating device according to the invention Fig. 1, with the control unit assuming an end position.

[0017] The invention relates to a control device for a motor vehicle, which is installed in an interior area of ​​the motor vehicle. Preferably, the control device is used for gear selection in an automatic transmission or for selecting the direction of travel.

[0018] Fig. Figures 1 to 3 show a preferred embodiment of an operating device 10 according to the invention, wherein the operating device 10 comprises an operating element 11 and a rolling track 12 for the operating element 11. A magnetic attraction exists between the operating element 11 and the rolling track 12, which is provided by the fact that either the operating element 11 is at least partially ferromagnetic and the rolling track 12 is at least partially permanent magnetic, or the operating element 11 is at least partially permanent magnetic and the rolling track 12 is at least partially ferromagnetic.

[0019] In the preferred embodiment shown, the control element 11 is at least partially ferromagnetic, wherein at least one permanent magnet (not shown) is arranged in a housing 13 of the rolling cam 12, which preferably consists of a non-magnetic material, to provide the magnetic attraction between the control element 11 and the rolling cam 12.

[0020] It is also possible that either the control unit 11 is at least partially ferromagnetic and the rolling cam 12 is at least partially electromagnetic, or the control unit 11 is at least partially electromagnetic and the rolling cam 12 is at least partially ferromagnetic.

[0021] The magnetic attraction between the control element 11 and the rolling cam 12 can be temporarily varied via an at least partially electromagnetic rolling cam 12 or an at least partially electromagnetic control element 11.

[0022] The control unit 11 is designed for operation along the rolling track 12 and consists of a Fig. 1 stable resting position shown for at least one in Fig. 2 intermediate position shown in the direction of at least one in Fig. The end position shown in Figure 3 can be moved. If the preferred embodiment of the invention is a monostable operating device with a monostable control element 11, then only the one shown in Figure 3 is movable. Fig. 1 shown resting position stable, which includes at least one intermediate position (see Fig. 2) and at least one end position (see Fig. 3) are then unstable.

[0023] It should be noted that although a monostable operating device is preferred, an operating device according to the invention can also be multistable, in which case at least one intermediate position and / or at least one end position is stable in addition to the stable rest position.

[0024] The rollout backdrop 12, namely in Fig. 1 The housing 13 thereof has several mutually angled surface sections 14, 15, 16 on a section 13a facing the control element 11. The surface sections 15, 16 are arranged symmetrically around the surface section 14, with the surface section 14 defining the rest position and the surface sections 15, 16 each defining an intermediate position for different rolling directions of the control element 11.

[0025] The control element 11 is displaceable relative to the rolling track 12, namely relative to the surface sections 14, 15, 16 thereof, about instantaneous poles 17, 18, 19, 20 relative to the rolling track 12, namely pivotable.

[0026] The instantaneous poles 17, 18, which are active in a clockwise pivoting movement, and the instantaneous poles 19, 20, which are active in a counterclockwise pivoting movement, each have a distance from each other. Fig. Figures 1 to 3 show a pivoting movement of the control unit 11 relative to the rolling backdrop 12 in a clockwise direction.

[0027] The control unit 11 of the in Fig. The operating device 10 shown in Figures 1 to 3 can therefore be moved in two opposite directions from the rest position along the rolling track 12. Fig. 1. be moved via at least one intermediate position towards a respective end position, both clockwise and counterclockwise.

[0028] The first surface section 14 of the roll-off track 12 interacts with a first counter-surface section 21 of the control unit 11. During the transfer of the control unit 11 from the in Fig. 1 shown resting position in the in Fig. The intermediate position shown in Figure 2 is the first counter-surface section 21 of the control element 11 about the first instantaneous pole 17 of the first surface section 14 of the rolling track 12, which is arranged at a front end of the first surface section 14 in the direction of rolling movement, and thus pivotable.

[0029] In this process, the first counter-surface section 21 of the control element 11 lies flat and without play against the first surface section 14 of the rolling track 12 in the rest position of the control device 10, whereby when the control element 11 is moved from the rest position to the intermediate position, the first counter-surface section 21 of the control element 11 rolls around the first instantaneous center of rotation 17 of the first surface section 14 of the rolling track 12 and is thereby increasingly lifted off the first surface section 14 until, as Fig. Figure 2 shows that in the intermediate position the second surface section 15 of the rolling contour 12 and a second opposing surface section 22 of the control unit 11 lie flat and without play against each other.

[0030] The second surface section 15 of the rolling track 12, which follows the first surface section 14 and the first instantaneous center of rotation 17 in the direction of rolling movement, interacts with the second opposing surface section 22 of the control unit 11 to facilitate the transfer of the control unit from the Fig. The intermediate position shown in point 2 can either be moved to a further intermediate position or, in the illustrated embodiment, to the position shown in point 2. Fig. In the end position shown, the second counter-surface section 22 of the control element 11 rolls and thus pivots around a second instantaneous center of rotation 18 of the second surface section 22 of the rolling track 12, which is arranged at a forward end of the second surface section 17 of the rolling track 12 in the direction of rolling movement. As already explained, in the intermediate position of the Fig. 2 the second counter surface section 22 of the control element 11 is flush with the second surface section 15 of the roll-off cam 12, wherein, when the control element 11 is removed from the in Fig. 2 intermediate position shown out into the in Fig. 3 end position shown, the second counter surface section 22 of the control element 11 rolls around the second instantaneous pole 18 of the second surface section 15 of the rolling track 12, which is formed at the front end of the second surface section 15 in the direction of rolling movement, and is thereby increasingly lifted off the second surface section 15, until the control element 11, namely a section 23 of the same angled relative to the second counter surface section 22, comes to rest against a stop 24 of the rolling track 12.

[0031] Will the control unit 11 differ from the Fig. 1 to 3 from the in Fig.If the control element 11 is not displaced clockwise but rather counterclockwise from the rest position shown in Figure 1, a rolling movement of the first counter-surface section 21 of the control element 11 relative to the first surface section 14 of the rolling cam 12 around the first instantaneous pole 19, which is formed at the front end of the first surface section 14 of the rolling cam 12 in the direction of rolling movement, takes place to displace the control element 11 from the rest position to an intermediate position, and this continues until the counter-surface section 25 of the control element 11, which interacts with the surface section 16 of the rolling cam 12, is in full contact with it.In a further counterclockwise pivoting movement of the control element 11, the second counter-surface section 25 is pivoted about the second instantaneous pole 20 on the second surface section 16 of the rolling track 12, again until a correspondingly angled section 29 of the control element 11 comes into contact with a corresponding stop 24 of the rolling track 12 and the control element 11 is moved counterclockwise into its end position.

[0032] Centering aids are provided between the control element 11 and the rolling track 12 to guide and center the control element 11 during its rolling movement along the rolling track 12. In the illustrated embodiment, projections 26 are formed as centering aids between adjacent surface sections 14, 15 and 14, 16 of the rolling track 12, engaging in recesses 27 of the control element 11 formed between adjacent counter-surface sections 21 and 22 and 21 and 25. Alternatively, recesses are formed as centering aids between adjacent surface sections 14 and 15 and 14 and 16 of the rolling track 12, into which projections formed between counter-surface sections 21 and 22 and 21 and 25 engage.

[0033] In the illustrated embodiment, the control element 11 has a projection 28 to which a control lever (not shown) can be connected. The control lever can also be an integral part of the control element 11. The control lever is preferably a gear selector lever of an automatic transmission or a direction selector lever.

[0034] The operating device 10 according to the invention therefore has the operating element 11 and the rolling track 12, between which a magnetic attraction force exists, wherein the operating element 11 rolls during the transfer of the same between the rest position, the at least one intermediate position and the at least one end position.

[0035] For the transfer of the control element 11 between the rest position and each intermediate position, and for the transfer of the control element 11 from each intermediate position to an end position following in the direction of rolling movement, a separate instantaneous pole 17, 18, 19, 20 is provided, which can also be referred to as the rolling point and is spaced apart from the other instantaneous poles, so that a discontinuous, discrete jumping transition occurs between the different instantaneous poles 17, 18, 19, 20.This allows for high-quality, particularly crisp and precise, haptic feedback to be provided when the control element 11 moves between its rest position and an intermediate position, and between any intermediate position and its respective end position. This is achieved with minimal friction between the control element 11 and the rolling track 12, as there is virtually no relative movement with a tangential component between the rolling track 12 and the control element 11. The control device 10 according to the invention also exhibits minimal play in its rest position.

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