DE102019103652B4 - Method for adjusting a rotatable vehicle seat and an associated adjustment system - Google Patents

Abstract

Method for adjusting a vehicle seat (10) which is rotatable about its vertical vertical axis (Z), which is arranged in the interior of a motor vehicle and which is moved from a starting position (I) in a first sector of use (GS1) about the vertical by means of a seat pivot adjustment device (SSV). Vertical axis (Z) is rotated through 180° into a starting position (I) in a second usage sector (GS2), a seat part (12) of the vehicle seat (10) being used by means of a seat depth adjustment device (STV) and a backrest (14) of the vehicle seat (10) can be brought into a compact position by means of a backrest tilt adjustment device (LNV), in which the seat part (12 ') has an upwardly pivoted compact position that shortens the seat depth and the backrest (14) has an upright compact position of the backrest part relative to the seat part (12). (14') or assume a compact position of the backrest part (14") that is pivoted forward relative to the seat part (12), whereby the vehicle seat (10) is in its compact position during its rotational movement by means of the seat pivot adjustment device (SSV) from the first to the second Use sector (GS1, GS2) is rotated collision-free relative to an adjacent vehicle seat (20) and/or relative to adjacent movable structures and/or immovable structures, characterized in that the rotational movement of the vehicle seat (10) by means of the seat pivot adjustment device (SSV) in time Sequence or at the same time as the seat depth adjustment using the seat depth adjustment device (STV) of the seat part (12) into the upwardly pivoted compact position of the seat part (12 ') and the inclination adjustment using the backrest inclination adjustment device (LNV) of the backrest (14) into one Compact position of the backrest part (14', 14") and• to a longitudinal displacement (x) of the vehicle seat (10) by means of a seat longitudinal adjustment device (SLV) and• to a transverse displacement (y) of the vehicle seat (10) by means of a seat transverse adjustment device ( SQV) and • a height adjustment (z) is triggered and carried out by means of a seat height adjustment device (SHV) of the vehicle seat (10), so that the vehicle seat (10) is caused by the further adjustment movements, the longitudinal displacement (x) and the transverse displacement (y ) and the height adjustment (z), is brought into a superimposed compact position.

Description

The invention relates to a method for adjusting a rotatable vehicle seat and an associated adjustment system, which is arranged in the interior of a motor vehicle.

The publication EP 0 565 037 B1 describes a vehicle seat whose pivot point is displaceable, which makes it possible to set a larger distance between the backrest and a side wall of the vehicle, whereby the rotation or pivoting range of the vehicle seat is increased. In order to pivot the vehicle seat clockwise, the vehicle seat is first moved forward, then or at the same time upwards, so that the vehicle seat comes into a position in which a bolt is moved by a measure of a vehicle structure that comes into contact with the backrest during rotation has moved away. In this position, the vehicle seat is brought into a maximum pivoting position around the bolt, in which the backrest rests against the bottom of the vehicle structure. By displacing the bolt and thus the axis of rotation of the seat and the associated increase in the distance of the axis of rotation from the vehicle structure, the pivoting range of the vehicle seat between the starting position and the maximum pivoting position can be significantly increased.

In print DE 34 37 962 A1 is disclosed to adjust an inclination position of the seat cushion when the vehicle seat is rotated. The publication also describes DE 37 08 399 A1 a vehicle seat that can be rotated in confined space situations, the seat frame being able to be raised in a rearwardly adjustable manner, with means being provided to pivot the backrest in the direction of the seat cushion while the seat frame is being raised.

Furthermore, reference is made to the publications DE 10 2013 227 013 A1 and DE 10 2013 003 278 A1 pointed out, which disclose generic adjustment systems.

The invention is based on the object of creating a rotatable vehicle seat which, despite limited space, enables comfortable rotation without collision with adjacent components, so that an unhindered rotational movement can be carried out in the largest possible rotation range.

The starting point of the invention is a method for adjusting a vehicle seat that can be rotated about its vertical vertical axis, which is arranged in the interior of a motor vehicle and which, by means of a seat pivot adjustment device, moves from a starting position in a first sector of use around the vertical vertical axis by 180 ° into a starting position in a second Sector of use is rotated, with a seat part of the vehicle seat being brought into a compact position by means of a seat depth adjustment device and a backrest of the vehicle seat by means of a backrest tilt adjustment device, in which the seat part has an upwardly pivoted compact position which shortens the seat depth and the backrest has an upright position relative to the seat part Compact position of the backrest part or a compact position of the backrest part pivoted forward relative to the seat part, whereby the vehicle seat in its compact position during its rotational movement by means of the seat pivot adjustment device from the first to the second sector of use relative to an adjacent vehicle seat and / or relative to adjacent movable structures and / or immovable structures is rotated without collision.

The object is achieved according to the invention in that the rotational movement of the vehicle seat by means of the seat pivot adjustment device in time sequence or at the same time as the seat depth adjustment by means of the seat depth adjustment device of the seat part in the upwardly pivoted compact position of the seat part and to the inclination adjustment by means of the backrest tilt adjustment device Backrest in a compact position of the backrest part and a longitudinal displacement of the vehicle seat by means of a seat longitudinal adjustment device and a transverse displacement of the vehicle seat by means of a seat transverse adjustment device and a height adjustment by means of a seat height adjustment device of the vehicle seat is triggered and carried out, so that the vehicle seat is triggered by the further adjustment movements, the longitudinal displacement and the transverse displacement and the height adjustment, is brought into a superimposed compact position.

An advantage of the method is that vehicle seats can be adjusted to a lesser extent, particularly in vehicles with compact dimensions, in other words vehicles that have a small interior with vehicle seats arranged at a short distance within the specified vehicle environment. The adjustment concept presented below or the associated adjustment system advantageously uses already existing adjustment components, as will be explained below.

In the future, such adjustment systems will be required, particularly for autonomous driving enable the vehicle seat to be rotated by 180° from the conventional position without having to remove the respective vehicle seat from the interior of the vehicle.

It is preferably provided that the vehicle seat can be moved collision-free from the starting position into a dialogue position or an entry and exit position within the first sector of use by means of the seat pivot adjustment device and, without collision, via the pivoting areas into the second sector of use by means of the seat pivot adjustment device and there collision-free by means of the seat pivot. Adjustment device is brought into the starting position or a dialog position.

Furthermore, it is provided that a control unit of the adjustment system comprises at least one control device with at least one storage medium and a program algorithm, which knows the fixed position data of the non-movable structures of the body or the interior and which is connected to a sensor system which detects the local variable position data of the movable vehicle seats as a whole and the individual components of the movable vehicle seats and the other movable structures of the body in three-dimensional space, so that depending on the fixed and changeable position data, even before the rotational movement of the at least one vehicle seat in the first or second sector of use or from the first in the second sector of use and vice versa, the compact position of the seat part and / or the backrest is adjustable, depending on the position data and required to avoid collisions.

The adjustment system thus advantageously enables the respective position of the vehicle seats or the adjustable components of the vehicle seat or other movable structures within the vehicle environment to be recorded, so that the respective situation can be responded to in an advantageous manner.

In preferred embodiments, it is provided that the vehicle seat is moved by means of the adjustment system depending on the fixed position data and determined variable position data, even before the rotational movement of the at least one vehicle seat located in the compact position takes place in the first or second sector of use or from the first to the second sector of use, is additionally brought into the superimposed compact position by the longitudinal displacement by means of the seat longitudinal adjustment device and the transverse displacement by means of a seat transverse adjustment device and the height adjustment by means of the seat height adjustment device.

In other words, the adjustment devices are advantageously triggered or actuated in time sequence or at the same time, so that an unhindered, collision-free rotational movement of the at least one vehicle seat can be carried out.

Two vehicle seats can therefore move in parallel, that is to say at the same time, about their vertical axis. The sensor system according to the invention records the respective position data of both vehicle seats and the associated movable or non-movable vehicle environment and coordinates the rotational movements with one another in such a way that both vehicle seats can be rotated into the respective position without hindrance.

An essential component is the basic idea of putting the vehicle seats in the space-saving compact position and also in the superimposed compact position.

Advantageously, simultaneous movements of several adjustment devices can be used to realize superimposed movements that cannot be achieved with successive movements.

As mentioned, the adjustment devices mentioned can be triggered in time sequence or simultaneously, that is to say individually or coupled and/or in series via a remote unlocking, the actuation being carried out electrically, electromechanically or mechanically in order to move the vehicle seat or seats into the compact position and the superimposed one to bring compact position.

Furthermore, it is provided according to the invention that the control unit of the adjustment system is connected by means of the sensor system, in particular an interior monitoring sensor system and/or a seat occupancy detection sensor system, which detects whether a person is sitting on the at least one vehicle seat, so that in an advantageous manner Depending on an adjustment request transmitted to the control unit, a rotational movement of the at least one vehicle seat is carried out by means of the seat pivot adjustment device with a person sitting on it only when the at least one vehicle seat is pivoted within the first or the second sector of use.

This solution is particularly advantageous because, on the one hand, it ensures the safety of the people using it when a rotational movement occurs in a narrow area (outside the sec. of use). gates) takes place or should take place, but also ensures that people can remain in the vehicle seat during certain adjustment requirements that are to be carried out within the usage sectors.

Furthermore, it is provided that when the at least one vehicle seat rotates by means of the seat pivot adjustment device in the direction of the interior, the at least one vehicle seat rotates past a center console and/or an adjacent vehicle seat at a narrow point without collision in a pivoting movement about the vertical axis of the vehicle seat, in that the vehicle seat is brought into the compact position and into the superimposed compact position before the rotational movement.

It is also particularly advantageous that the at least one vehicle seat rotates past a vehicle door and a B-pillar of a bottleneck without collision when the at least one vehicle seat rotates by means of the seat pivot adjustment device in the direction of the body in a pivoting movement about the vertical axis of the vehicle seat, in that the vehicle seat is brought into the compact position and into the superimposed compact position before the rotary movement.

It is also particularly advantageous that the at least one vehicle seat in the superimposed compact position is adjusted in height in the height direction by means of the seat height adjustment device and in the longitudinal direction by means of the seat longitudinal adjustment device and in the transverse direction by means of the seat transverse adjustment device, so that an axis point of the imaginary vertical axis of the at least one Vehicle seat moves up and down on an uneven or uniform spiral curve depending on the adjustment device(s) used - seen in three-dimensional space - and thereby guided past the bottlenecks without collision, depending on the direction of rotation relative to the adjacent movable vehicle seats and/or movable structures and/or immovable structures becomes.

• 1 eine schematische Übersicht über Gebrauchsstellungen eines Fahrzeugsitzes in Gebrauchssektoren und den zugehörigen Schwenkbereichen beim Übergang des Fahrzeugsitzes von einem ersten Gebrauchssektor zu einem zweiten Gebrauchssektor;
• 2A bis 2E perspektivische Darstellungen von Gebrauchsstellungen des Fahrzeugsitzes in den Gebrauchssektoren gemäß 1;
• 3 eine perspektivische Darstellung der beengten Platzverhältnisse eines Fahrzeugsitzes beziehungsweise der Fahrzeugsitze beim Übergang von dem ersten Gebrauchssektor in den zweiten Gebrauchssektor;
• 4A bis 4D sequentielle perspektivische Darstellungen einer Drehbewegung des Fahrzeugsitzes von dem ersten Gebrauchssektor zu dem zweiten Gebrauchssektor in einer ersten Ausführungsform;
• 5A bis 5G sequentielle perspektivische Darstellungen einer Drehbewegung des Fahrzeugsitzes von dem ersten Gebrauchssektor zu dem zweiten Gebrauchssektor in einer zweiten Ausführungsform;
• 6A bis 6F sequentielle schematische Darstellungen einer gekoppelten Dreh-/Schwenkbewegung des Fahrzeugsitzes in einer ersten Ausführungsvariante;
• 7A bis 7F sequentielle schematische Darstellungen einer gekoppelten Dreh-/Schwenkbewegung des Fahrzeugsitzes in einer zweiten Ausführungsvariante.

The invention is explained below in exemplary embodiments using the associated drawings. Show it:

• 1 a schematic overview of usage positions of a vehicle seat in usage sectors and the associated pivoting areas when the vehicle seat transitions from a first usage sector to a second usage sector;
• 2A until 2E Perspective representations of positions of use of the vehicle seat in the sectors of use 1 ;
• 3 a perspective view of the limited space of a vehicle seat or the vehicle seats during the transition from the first sector of use to the second sector of use;
• 4A until 4D sequential perspective illustrations of a rotational movement of the vehicle seat from the first sector of use to the second sector of use in a first embodiment;
• 5A until 5G sequential perspective illustrations of a rotational movement of the vehicle seat from the first sector of use to the second sector of use in a second embodiment;
• 6A until 6F sequential schematic representations of a coupled rotation/pivoting movement of the vehicle seat in a first embodiment variant;
• 7A until 7F sequential schematic representations of a coupled rotation/pivoting movement of the vehicle seat in a second embodiment variant.

The invention is explained below. For the purposes of this description, “+x” (“plus x”) is intended to denote the usual direction of travel of a vehicle, “-x” (“minus x”) is intended to denote the direction opposite to its usual direction of travel, and “y” is the Direction in the horizontal transverse to the x-direction is denoted and “z” is the direction in the vertical transverse to the x-direction. This designation of the spatial directions in Cartesian coordinates corresponds to the coordinate system generally used in the motor vehicle industry. Within all figures, the same reference numerals are used for the same components, although not all of the components already presented will be explained again in each figure using the reference numerals.

The 1 shows a schematic overview of usage positions of a vehicle seat 10 in usage sectors GS1, GS2 and pivoting areas SB1, SB2 during the transition of the vehicle seat 10 from a first usage sector GS1 to a second usage sector GS2.

To illustrate the invention, a vehicle seat 10 is first shown, which is arranged in an interior of a vehicle, not shown, for example in the position that is assigned to the driver of the vehicle. The vehicle seat 10 is designed as a swivel seat and is in a starting position I in the usual driver's position. The vehicle seat 10, designed as a swivel seat, is about its vertical Vertical axis Z can be pivoted into various usage positions within the first usage sector GS1, which will be discussed later.

In the positions of the first usage sector GS1, the person sitting on the vehicle seat can sit on the vehicle seat during the rotational movement of the vehicle seat 10.

It is envisaged that the vehicle seat 10 can be rotated from the starting position I in the first usage sector GS1 to the second usage sector GS2 about the vertical axis Z by 180° into a starting position I opposite in the x direction.

This rotational movement from GS1 to GS2 takes place as in 1 is made clear, reversible in the clockwise direction as a pivoting movement SB+ or counterclockwise as a pivoting movement SB- over the first pivoting range SB1 or in a clockwise or counterclockwise direction over the second pivoting range SB2.

Due to adjacent components, which will be explained later, the vehicle seat 10 cannot be used by a person sitting on it during the rotational movement from GS1 to GS2 or vice versa, since there is no more legroom available during this rotational movement.

The 2A until 2E shows perspective representations of positions of use of the vehicle seat 10 in the usage sectors GS1, GS2 according to 1 .

In the 2A until 2E Adjacent components are shown as examples and marked with reference numbers.

In the exemplary embodiment, an adjacent vehicle seat 20 is arranged in the first pivoting region SB1 and an adjacent structure, in particular body structure, is arranged in the second pivoting region SB2, which prevents rotation of the vehicle seat 10 with a person sitting on it, firstly due to a lack of legroom.

In addition, secondly, a seat part 12 and/or a backrest part 14 of the vehicle seat 10 collide with the adjacent vehicle seat 20 within the first pivoting range SB1 or with the body structure within the second pivoting range SB2.

It is assumed below that the adjacent vehicle seat 20 is designed as a so-called passenger seat analogous to the vehicle seat 10 already described.

In the 2A until 2E Taking into account what has been stated above, the usage positions of the vehicle seats 10, 20 are shown, which can be assumed by rotating the vehicle seats 10, 20 from the starting position I within the first usage sector GS1.

The 2A shows the adjacent vehicle seats 10, 20 each in their starting position I within the first usage sector GS1.

The 2 B shows the adjacent vehicle seats 10, 20 each in their dialog position II within the first usage sector GS1.

The 2C shows the adjacent vehicle seats 10, 20 each in their entry and exit position III within the first usage sector GS1.

The 2D shows the adjacent vehicle seats 10, 20 each in their starting position I, which is also referred to as the “vis-a-vis” position, within the second usage sector GS2.

In the “Vis-a-Vis” position, the people sitting on the vehicle seats 10, 20 in the first row of seats sit “Vis-a-Vis” opposite the people sitting in the second row of seats of the vehicle seats in the second row of seats that are in the usual position.

The 2E shows the adjacent vehicle seats 10, 20 each in their dialog position II and their entry and exit position III within the second usage sector GS2.

The 2A until 2E illustrate that the various positions I, II, III within the usage sectors GS1, GS2 can easily be carried out by rotating the vehicle seats 10, 20 about the vertical axis Z, whereby those sitting on them do not have to leave the vehicle seat 10, 20.

There is too little space, that is to say a cramped installation space situation, when the vehicle seats 10, 20 are rotated in the pivoting areas SB1 and SB2.

The 3 shows a perspective view of the limited space available in the vehicle seats during a transition from the first usage sector GS1 to the second usage sector GS1 and vice versa.

For clarification, the first vehicle seat 10 is shown in a position in which a body of the vehicle seat 10 has left the first usage sector GS1.

The seat part 12 of the vehicle seat 10 collides in a bottleneck E20 with the adjacent vehicle seat 20 and / or the backrest part 14 of the vehicle seat 10 collides in a bottleneck E30, for example with a B-pillar B of the body structure.

According to the invention, the following technical solutions provide a remedy, i.e. preventing collisions in the bottlenecks E20, E30, which are only mentioned as examples.

The idea is to create an adjustment system which ensures collision-free adjustment of the vehicle seat 10 after an adjustment request for adjusting the vehicle seat 10 for at least one vehicle seat 10.

In a maximum expansion stage, the vehicle seat 10 includes a seat longitudinal adjustment device SLV, a backrest tilt adjustment device LNV, a seat depth adjustment device STV and a seat height adjustment device SHV and a seat pivot adjustment device SSV and a seat transverse adjustment device SQV.

It is provided that the adjustment system is assigned a control unit, in particular a control device and an associated program algorithm, which ensures collision-free adjustment of the vehicle seat 10.

In order to be able to ensure that the vehicle seat 10 is free of collisions in an interior of the vehicle when adjusting the vehicle seat 10, the adjustment system is provided with the local data of those components that are arranged in a stationary manner within the interior or that form the interior as a body or the interior surround.

The stationary component(s) is/are only, for example, to illustrate the invention, a center console on the interior side or a B-pillar B on the body side (cf 3 ) of the body called.

It is understood that this data varies from vehicle to vehicle and must therefore be taken into account on a vehicle-specific basis.

Furthermore, in order to be able to ensure that the vehicle seat 10 is free of collisions in an interior of the vehicle when adjusting the vehicle seat 10, the adjustment system is provided with the local data of those components that are movably arranged within the interior or that form the interior as movable body parts or surround the interior.

As movable components, only for example a driver's door 30A and a passenger's door are mentioned as body parts forming the interior, which are in a closed or in an open state. According to the invention, the adjustment system is provided with data which can be used to determine whether the driver's door 30A is in a closed state or in which position the opened driver's door 30A is in the unlocked state.

Furthermore, in order to be able to ensure that the vehicle seat 10 is free of collisions in an interior of the vehicle when adjusting the vehicle seat 10, the adjustment system is provided with the local data of the seat part 12 and the backrest part 14 of the vehicle seat 10 (see 3 ) provided by yourself. This takes into account that the local data not only changes when the entire vehicle seat 10 is moved, but also the change in the local data of the individual seat part 12 and the individual backrest part 14 is recorded in order to move the vehicle seat 10 without collision to be able to.

In other words, the adjustment system has the local position data of the relevant non-movable and movable components available in three-dimensional space, so that it can react according to the desired adjustment arrangement depending on the position data of the components.

In order to be able to determine this position data, various sensors can be used.

For example, the interior is equipped with an interior monitoring sensor system, which monitors the moving components in particular and transmits them to the adjustment system. Only for example is it possible to determine the starting position I in the first usage sector GS1 or the starting position I in the second usage sector GS2, so that in conjunction with the known position data of the non-movable components, an adjustment of the vehicle seat 10 is possible without the vehicle seat 10 collided with another component.

There is also the possibility, according to the maximum expansion level described, of the adjustment devices, such as the seat longitudinal adjustment Device SLV, the backrest tilt adjustment device LNV, the seat depth adjustment device STV, the seat height adjustment device SHV and the seat transverse adjustment device SQV, to assign corresponding sensors, so that starting from the starting position I, it can always be detected in which position the vehicle seat 10 is overall or in which position the individual components of the vehicle seat 10, i.e. the seat part 12 or the backrest part 14, are located.

In summary, it is ensured that all the necessary position data is available in order to be able to move a vehicle seat 10 without collision.

According to those already described and in the 2A until 2E Positions I, II, II shown show that the previously described acquisition of the position data not only affects the vehicle seat 10, but also the adjacent vehicle seat 20, so that the adjustment system always has the position of the vehicle seats 10, 20 or the position of the associated components is provided, whereby the position of the vehicle seats 10, 20 or their components relative to one another can be taken into account when adjusting one or both vehicle seats 10, 20.

This means that, if necessary, a vehicle seat 10 can be adjusted on its own or two vehicle seats 10, 20 are moved one after the other or in parallel in time, with the adjustment system analyzing, determining and without the respective possible and best adjustment movement based on the position data available at the time of the adjustment request further intervention is carried out by a person sitting on the seat.

The adjustment system is also able to determine, taking into account the adjustment requirement(s), whether the adjustment of the vehicle seat or seats 10, 20 is desired within the usage sectors GS1 and GS2, so that the adjustment can be carried out with the person sitting on the vehicle seat 10, 20 can take place.

If the adjustment system determines that an adjustment is desired in which the vehicle seat 10, 20 pivots into one of the pivot areas SB1, SB2 by means of the seat pivot adjustment device SSV, the adjustment is only carried out after the person has left the vehicle seat 10, 20 has or has not yet sat on the vehicle seat 10, 20. This means that the respective vehicle seat 10, 20 is also assigned a seat occupancy sensor system, which informs the adjustment system whether a person is sitting on the vehicle seat 10, 20.

If, for example, the adjustment system determines that an adjustment is desired in which the vehicle seat 10 is able to assume an entry and exit position III (see 2C ) collides with the driver's door 30A, this adjustment would only be carried out to the extent that no collision takes place. A further adjustment of the vehicle seat 10 to achieve an even more comfortable entry and exit position III only takes place if the adjustment system has determined that the driver's door 30A is in a sufficiently open position.

The invention is explained in more detail with reference to the further figures in further exemplary embodiments, in which it is assumed in these exemplary embodiments that there is an adjustment requirement for an individual vehicle seat 10.

In the following exemplary embodiment, it is assumed that an adjustment to the starting position I of the vehicle seat in the second usage sector GS2 is requested from the starting position I of the vehicle seat 10 in the first usage sector GS1. The adjustment system recognizes that adjustment without collision is only possible if the analyzed bottlenecks E20, E30 do not represent an obstruction. First, the adjustment system checks whether no person is sitting on the vehicle seat 10 when this adjustment request is made. If no person is sitting on the vehicle seat 10, the rotation function of the vehicle seat 10 is triggered, with a backrest lock of the backrest part 14 being automatically activated and unlocked. In other words, the backrest tilt adjustment device LNV (see 3 , arrow in +x direction) activated.

The 4A until 4D show sequential perspective representations of a rotational movement of the vehicle seat 10 from the first sector of use GS1 to the second sector of use GS2 in a first embodiment, to which reference is made below.

Through an electric backrest fitting 16 (see also 3 ) or spring-loaded locking adjuster, the backrest part 14 is brought into a position that is favorable for the rotational movement and the installation space situation in the vehicle, it being in particular provided that the backrest part 14 assumes an almost vertical, compact position (= compact position of the backrest part 14 ').

After the almost vertical, compact position of the backrest part 14 'is assumed the backrest lock of the backrest tilt adjustment device LNV is locked again.

In addition, it is provided that the seat part 12 'or a front seat cushion of the seat part 12' is spring-loaded or set up electrically (= compact position (see 3 , arrow “in Z direction” in the front area of the seat part 12). In other words, the seat depth adjustment device STV is activated, with the seat part 12' or the front seat cushion of the seat part 12' being locked again in the adjusted position.

After these measures, the seat pivot adjustment device SSV of the vehicle seat 10 is released to rotate the vehicle seat about the vertical axis Z.

It goes without saying that the measures described above can also be carried out in parallel.

By folding the seat part 12 'or a front seat cushion of the seat part 12' and setting up the backrest part 14' in a substantially vertical position, the rotation of the vehicle seat 10 about the vertical axis Z can be carried out without further collision 3 The bottlenecks E20, E30 shown can be carried out.

This embodiment makes it clear that not all adjustment devices are always required to enable collision-free adjustment of the vehicle seat 10. In this previously described embodiment, for example, an adjustment of the vehicle seat 10 using the seat longitudinal adjustment device SLV is not required.

It is preferably provided that the vehicle seat 10 is brought into a rotational position that is favorable for the rotational movement and the installation space situation in the vehicle before the rotational movement of the vehicle seat 10. The seat rail (not shown) is unlocked and the vehicle seat 10 is brought into the rotational position that is favorable for the rotational movement and the installation space in the vehicle. The seat rail is then locked again and the rotational movement of the seat is only released in this position of the vehicle seat 10.

The seat part 12 and/or the backrest part 14 is/are brought into the previously explained “compact position” before/at the same time or immediately after the longitudinal adjustment of the seat.

A further embodiment, in which the seat longitudinal adjustment device SLV and the seat transverse adjustment device SQV take on essential functions, is described below based on the description of 5A until 5G explained, which show sequential perspective views of a rotational movement of the vehicle seat 10 from the first sector of use GS1 to the second sector of use GS2.

The 5A (left figure) shows the vehicle seat 10 in its starting position I.

The adjacent vehicle seat 20 is also shown (right image of the 5A) , which occurs when the vehicle seat 10 rotates according to the 3 Next to the body, the bottleneck E20 forms relative to the adjacent vehicle seat 20.

In this embodiment it is also provided to bring the backrest part 14 into the explained upright compact position, in which the backrest part 14 'is aligned essentially vertically.

The backrest part 14', which has been erected into the upright compact position, is in 5B (left figure).

In 5B A directional arrow is shown, which makes it clear that the vehicle seat 10 is displaced in its compact position in a so-called superimposed compact position transversely to the direction of travel +x in the y direction. According to the invention, the setting up of the backrest part 14' and the transverse displacement of the vehicle seat 10 in the y direction can be carried out simultaneously in successive steps or parallel to one another. The vehicle seat 10 includes a seat transverse adjustment device SQV, not shown, in order to carry out the transverse adjustment in the y direction.

The 5C (left figure) shows the vehicle seat 10 after the transverse displacement in the y-direction and, as indicated by the arrow (left figure), before a rotational movement, which is in 5C is carried out counterclockwise in the direction of the body, in particular in the direction of the driver's door 30A.

5C clarifies that due to the superimposed compact position of the backrest part 14 'and the transverse displacement of the vehicle seat 10 in the y direction, there is sufficient free space on both sides on the body side at the narrow point E30 and on the interior side at the narrow point E20 on both sides 5C (left figure) indicated rotational movement is formed, so that a position of the vehicle seat 10 outside the first sector of use GS1 according to a rotational movement 5D (left illustration) in the second swivel range SB2 is possible.

In other words, the vehicle seat according to 5D (left illustration) can be turned counterclockwise into the second pivoting range SB2 without there being a body-side or interior-side collision, whereby the driver's door 30A can remain closed.

In one embodiment variant, it can be provided, for example, that the transverse displacement of the vehicle seat 10 in the y-direction according to 5B and 5C is not carried out, so that a counterclockwise rotation of the vehicle seat 10 is only possible when the driver's door 30A is brought into an open position (not shown), in particular into an at least partially open position. In this case, the vehicle seat 10 is in the already explained entry and exit position III (see 2C ) brought.

The 5E shows the vehicle seat 10 after the corresponding displacement in the y-direction according to 5B and 5C , but here the vehicle seat 10 (left figure) is rotated clockwise according to the arrow by means of the seat pivot adjustment device SSV into the first pivot range SB1, without the vehicle seat 10 colliding with the body and with the adjacent vehicle seat 20, as in 5F is shown.

The 5G additionally shows that the vehicle seat 10 in its superimposed compact position both starting from the position in 5D as well as in 5F can be rotated into the second usage sector GS2 without a collision occurring.

In this second usage sector GS2, the vehicle seat can be in the explained starting position I, as shown in the left figure 5G displayed, or brought into dialog position II. It is understood that when the starting position I or the dialog position II is reached, the superimposed compact position is canceled so that the backrest part 14 'returns to its starting position I so that a person can sit on the vehicle seat 10 - as usual.

In addition to returning the backrest part 14 'to the starting position I, the vehicle seat 10 is also shifted back by means of the seat transverse adjustment device SQV in the opposite y-direction, these steps of shifting the vehicle seat 10 back into the starting position I towards the driver's door 30A on the body side and the Back adjustment of the backrest part 14' in 5G (left figure) has not yet taken place and is therefore not shown.

It is further understood that this embodiment can be expanded by providing, in addition to the upright compact position of the backrest part 14', the upwardly pivoted compact position of the seat part 12'.

In addition, in addition to the rotational movement of the vehicle seat 10, a seat longitudinal adjustment can also be provided by means of the seat longitudinal adjustment device SLV, so that, as already explained, several adjustment devices can be carried out in combination one after the other or at the same time. As already explained, the selection of which adjustment devices are used takes place via the adjustment system, which uses the described sensors to determine the position of the components of the vehicle seat 10 or the position of the vehicle seat 10 as a whole and based on the available free spaces or based on the available Given the available space, it automatically decides which adjustment movements are to be carried out.

In other words, all of the adjustment components (LNV/SLV/STV/SHV/SQV/SSV) necessary to achieve unhindered rotation of the vehicle seat 10 can be coupled via provided remote unlocking devices, triggered and carried out individually and/or in series in time sequence or at the same time be, the corresponding adjustment movements being designed electrically, electromechanically or mechanically in order to bring the seat into the most compact position possible or into a compact position superimposed by at least one further adjustment movement, so that the vehicle seat 10 can be moved without collision.

For example, according to the 5A until 5G For example, due to the adjustment request of a person starting from the starting position I in the first sector of use GS1, a rotational movement to the starting position I in the second sector of use GS2 is requested, the adjustment system determines the corresponding free spaces and selects the adjustment processes necessary for this, the rotating seat 10 being considered Vertical axis Z of the rotary seat, in the successive steps or the steps carried out at the same time in a kind of curved path from the starting position I in the first sector of use GS1 to the starting position I in the second sector of use GS2.

This curved track is created by a longitudinal seat displacement using the seat longitudinal adjustment direction SLV and caused by the transverse displacement carried out in the transverse direction by means of the seat transverse adjustment device SQV.

Seen in three-dimensional space, an axis point of the imaginary vertical axis Z is guided upwards on a spiral curve, insofar as the vehicle seat 10 is parallel by means of the seat height adjustment device SHV in the z direction along the vertical axis Z (see 1 ) and by a pivoting movement SB+, SB- around the vertical axis Z (compare 1 ) and is moved by the seat longitudinal adjustment device SLV and / or by the transverse displacement carried out in the transverse direction in the y-direction by means of the seat transverse adjustment device SQV.

This results in a three-dimensional displacement of the axis point formed by the vertical axis Z on an imaginary curved path in the y-direction, in the x-direction and in the z-direction.

According to the invention, two further embodiment variants of coupled functions are explained in order to ensure the rotational movement of the vehicle seat 10 and the unlocking of the backrest fitting 16 of the backrest part 14.

The 6A until 6F show sequential schematic representations of a coupled rotational movement of the vehicle seat 10 in a first embodiment variant.

The 6A shows the vehicle seat 10 in its starting position I. The seat part 12, the backrest part 14, a pair of seat rails 18 and a backrest-side actuating element 14A are shown. The actuating element is only shown as an example; it could also be an actuation sensor by means of which a Bowden cable 22 is activated.

6B shows the exemplary Bowden cable 22 as an actuator, which is activated by actuating the backrest-side actuating element 14A (cf 6A) is activated, whereby the fitting adapter of the backrest fitting 16 is unlocked and the backrest part 14 comes from the starting position I into the upright compact position of the backrest part 14 'by a spring preload (elements not shown).

In one embodiment, no spring preload is provided by means of corresponding elements, but a backrest tilt adjustment motor as a backrest tilt adjustment device moves the backrest from the starting position I into the upright compact position of the backrest part 14 'forward in the +x direction.

After reaching the upright compact position of the backrest part 14 'or the compact position of the backrest part 14" which has even been pivoted forward (compare 6C ) the backrest part 14', 14" locks in its respective compact position or remains positioned in its respective compact position via an end stop, the backrest part 14', 14" unlocking a further Bowden cable 26 as an actuator in one of the compact positions and the turntable 24 shown on the seat part side Vehicle seat 10 is released or unlocked for a pivoting movement by means of the seat pivot adjustment device SSV.

In other words, a position is assumed within the backrest fitting 16 by means of coupling or forced coupling, which results in a Bowden cable 26 being pulled in order to unlock the turntable 24. In the 6D the turntable 24 is shown in the still locked position, which after unlocking via the pulled Bowden cable 26 according to 6E into a rotational movement 6F can be moved. In 6F Once the turntable is positioned in its end position, it is locked again accordingly.

The 7A until 7F show sequential schematic representations of a coupled rotation/pivoting movement of the vehicle seat 10 in a second embodiment variant.

The main difference to the first embodiment variant according to the description 6A until 6F consists of a modified triggering action with a different actuator, as explained below.

The 7A shows the vehicle seat 10 in its starting position I. Shown are the seat part 12, the backrest part 14, the pair of seat rails 18 and an actuating element 12A on the seat part side. The actuating element 12A is only shown as an example; it could also be an actuation sensor by means of which the Bowden cable 26 is activated.

By actuating the seat part-side actuating element 12A according to 7A , 7D the turntable 24 (compare 7E) unlocked and the pivoting movement of the turntable 24 of the vehicle seat 10 (see 7F) carried out using the seat swivel adjustment device SSV. After the pivoting movement, a corresponding locking takes place (compare 7F) of the turntable 24 relative to the seat structure. As a result of the rotational movement of the turntable 24, the Bowden cable 26 is actuated as an actuator by means of a coupling or forced coupling, in particular via a lever and/or a sensor fitting 16 unlocked and the backrest part 14 is moved from the starting position I into the upright compact position of the backrest part 14 'by a spring preload (elements not shown) (see 7B) or the compact position of the backrest part 14" pivoted forward (compare 7C ) brings.

In one embodiment, no spring preload is provided by means of corresponding elements, but a backrest tilt adjustment motor as a backrest tilt adjustment device LNV moves the backrest part 14 from the starting position I into one of the compact positions forward in the +x direction.

Reference symbol list

10

Vehicle seat

12

Seat part

12A

Seat part-side actuating element

12'

Seat part, compact position pivoted upwards

14

Backrest part

14A

backrest-side actuating element

14'

Backrest part, upright compact position

14"

Backrest part, compact position pivoted forward

16

Backrest fitting

18

Pair of seat rails

20

adjacent vehicle seat

22

Bowden cable

24

Turntable

26

Bowden cable

GS1, GS2

Use sectors

SB1, SB2

Swivel ranges

SB+

Clockwise pivoting movement

SB

Swivel movement counterclockwise

I

Starting position

II

Dialogue position

III

Entry and exit position

30A

Drivers door

b

B-pillar

30B

Rear door

E20

Constriction compared to the neighboring vehicle seat 20

E30

Constriction in relation to the body

SLV

Seat longitudinal adjustment device

LNV

Backrest tilt adjustment device

STV

Seat depth adjustment device

SHV

Seat height adjustment device

SQV

Seat transverse adjustment device

SSV

Seat swivel adjustment device

+x

Direction in the usual direction of travel of a vehicle

-x

Direction opposite to the usual direction of travel +x

y

Direction in the horizontal transverse to the x direction

e.g

Direction in the vertical transverse to the x direction

Z

vertical axis

Claims (8)

Method for adjusting a vehicle seat (10) which is rotatable about its vertical vertical axis (Z), which is arranged in the interior of a motor vehicle and which is moved from a starting position (I) in a first sector of use (GS1) about the vertical by means of a seat pivot adjustment device (SSV). Vertical axis (Z) is rotated through 180° into a starting position (I) in a second usage sector (GS2), a seat part (12) of the vehicle seat (10) being used by means of a seat depth adjustment device (STV) and a backrest (14) of the vehicle seat (10) can be brought into a compact position by means of a backrest tilt adjustment device (LNV), in which the seat part (12 ') has an upwardly pivoted compact position that shortens the seat depth and the backrest (14) has an upright compact position of the backrest part relative to the seat part (12). (14') or assume a compact position of the backrest part (14") which is pivoted forward relative to the seat part (12), whereby the vehicle seat (10) is in its compact position during its rotational movement by means of the seat pivot adjustment device (SSV) from the first to the second Use sector (GS1, GS2) is rotated collision-free relative to an adjacent vehicle seat (20) and/or relative to adjacent movable structures and/or immovable structures, characterized in that the rotational movement of the vehicle seat (10) by means of the seat pivot adjustment device (SSV) in time sequence or at the same time as the seat depth adjustment by means of the seat depth adjustment device (STV) of the seat part (12) into the upwardly pivoted compact position of the seat part (12 ') and the inclination adjustment by means of the Backrest tilt adjustment device (LNV) of the backrest (14) into a compact position of the backrest part (14`, 14") and • to a longitudinal displacement (x) of the vehicle seat (10) by means of a seat longitudinal adjustment device (SLV) and • to a transverse displacement ( y) the vehicle seat (10) is triggered and carried out by means of a seat transverse adjustment device (SQV) and • a height adjustment (z) is triggered and carried out by means of a seat height adjustment device (SHV) of the vehicle seat (10), so that the vehicle seat (10) is adjusted by the further adjustment movements, the longitudinal displacement (x) and the transverse displacement (y) and the height adjustment (z), is brought into a superimposed compact position. Procedure according to Claim 1 , characterized in that the vehicle seat (10) in the first usage sector (GS1) from the starting position (I) into a dialogue position (II) or an entry and exit position (III) and in the second usage sector (GS2) into the starting position ( I) or the dialogue position (II) is brought. Procedure according to the Claims 1 and 2 , characterized in that fixed position data of the immovable structures of the body and the interior are known and local variable position data of the movable vehicle seat (10) and the adjacent movable vehicle seat (20) as a whole and of the seat part (12) and the backrest (14) of the movable Vehicle seats (10, 20) and the adjacent movable structures of the body are determined in three-dimensional space by an interior monitoring sensor system, so that depending on the fixed and variable position data, even before the rotational movement of the vehicle seat (10) in the first or second sector of use (GS1 , GS2) or from the first to the second sector of use (GS1, GS2) or vice versa, the upward pivoted compact position of the seat part (12') and one of the compact positions of the backrest part (14', 14"), which is dependent on the position data and is required to avoid collisions, be set. Procedure according to Claim 3 , characterized in that depending on the known fixed position data and determined variable position data, even before the rotational movement of the vehicle seat (10), which is in a compact position, in the first or second use sector (GS1, GS2) or from the first to the second use sector (GS1 , GS2) or vice versa, in addition the longitudinal displacement (x) by means of the seat longitudinal adjustment device (SLV) and the transverse displacement (y) by means of a seat transverse adjustment device (SQV) and the height adjustment (z) by means of a seat height adjustment device into the superimposed compact position he follows. Method according to at least one of the Claims 1 until 4 , characterized in that the interior monitoring sensor system and / or a seat occupancy detection sensor system detects whether a person is sitting on the vehicle seat (10), so that the rotational movement of the vehicle seat (10) is only carried out depending on a transmitted adjustment request with a person sitting on it when the vehicle seat (10) is pivoted within the first or second sector of use (GS1, GS2). Procedure according to Claim 1 , characterized in that the vehicle seat (10) in the superimposed compact position is adjusted in height in the z-direction by means of the seat height adjustment device (SHV) and in the longitudinal direction (x-direction) by means of the seat longitudinal adjustment device (SLV) and by means of the seat transverse adjustment device (SQV ) is shifted in the transverse direction (y-direction), so that an axis point of the imaginary vertical axis (Z) of the vehicle seat (10) depends on the longitudinal displacement (x) and the transverse displacement (y) by means of the seat longitudinal adjustment device (SLV) and the seat transverse -Adjustment device (SQV) - seen in three-dimensional space - moves up and down on an uneven or uniform spiral curve and thereby, depending on the direction of a pivoting movement (SB+, SB-), relative to the adjacent movable vehicle seat (20) and / or movable structures and / or immovable structures is guided past the bottlenecks (E20, E30) without collision. Adjustment system for adjusting a vehicle seat (10) that can be rotated about its vertical axis (Z) for carrying out the method according to at least one of Claims 1 until 6 , at least comprising • a seat pivot adjustment device (SSV) and • a seat depth adjustment device (STV) and • a backrest tilt adjustment device (LNV) and • a seat height adjustment device (SHV) and • a seat longitudinal adjustment device (SLV) and • a Seat transverse adjustment device (SQV). adjustment system Claim 7 , further comprising an interior monitoring sensor system or an interior monitoring sensor system and a seat occupancy detection sensor system.

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