DE102019216333A1 - Adjustment assembly for a vehicle and method for adjusting at least one adjustment part - Google Patents

Abstract

The proposed solution relates in particular to an adjustment assembly for a vehicle, with at least one adjustment drive (6) for adjusting at least one adjustment part (ST1, ST2) of the adjustment assembly between a first position and at least one second position, - a locking device (VB1, VB2) for Locking the adjustment part (ST1, ST2) in the first position, wherein - the locking device (VB1, VB2) has a locking element (2) that can be adjusted between a release position and a locking position and - via the locking element (2) in its locking position, the adjustment part ( ST1, ST2) can be locked in the first position and, when the locking element (2) is in its release position, the adjustment part (ST1, ST2) can be displaced from the first position into the second position, and an electronic detection device for generating at least one status signal (s5 ), which is used to signal whether the locking element (2) is in its locking position. Control electronics (7) are provided which generate at least one control signal (s62, s8, s92) from one representative of the current position of the adjustment part (ST1, ST2) Position signal (s61, s91) as well as the at least one state signal (s5) makes dependent.

Description

The proposed solution relates in particular to an adjustment assembly for a vehicle which, among other things, comprises at least one adjustment drive for adjusting an adjustment part of the adjustment assembly and a locking device for locking the adjustment part in a first position.

In the case of adjustment assemblies for different vehicle components, it is known to use an electronic detection device to generate a status signal which signals whether a locking element of the locking device is in a locking position. In this case, the adjusting part is locked in a first position via the locking element of the locking device and, for this purpose, is releasably fixed, for example, to a component fixed to the body. If the respective adjustment part is then shifted from the first position to a second position and is to be adjusted in the direction of the first position with the aid of the adjustment drive, it is typically provided that the adjustment part is automatically locked again with the aid of the locking device when the first position is reached. This applies, for example, to an adjustment part in the form of a vehicle door which is to be locked in a closed position via a lock of a locking device, but also to a seat underframe of a vehicle seat which is to be locked to a floor assembly fixed to the body via a locking device in a position of use, or for an adjustment part in the form of a flap or cover to be provided in the vehicle interior.

From the EP 2 326 530 B1 For example, it is known to provide an adjustment assembly with a locking device and an electronic detection device for a vehicle seat, with the electronic detection device being able to generate several distinguishable status signals in order to signal the position in which a locking element - here in the form of a rotary latch - is located. In particular, it should be possible to signal whether the locking element and a lock of the locking device comprising this locking element may not be locked as intended and whether there is a locked state, an unlocked state or a case of abuse.

However, there is still a need for adjustment assemblies and methods, not only for vehicle seats, which are improved in terms of their functional scope and the provision of additional safety functions.

This object is achieved both with an adjustment assembly of claim 1 and with a method of claim 13.

• - einen Verstellantrieb zur Verstellung wenigstens eines Verstellteils der Verstellbaugruppe zwischen wenigstens einer zweiten Position und einer ersten Position,
• - eine Verriegelungsvorrichtung zum Verriegeln des Verstellteils in der ersten Position, wobei
  • - die Verriegelungsvorrichtung ein zwischen einer Freigabeposition und einer Verriegelungsposition verstellbares Verriegelungselement aufweist und
  • - über das in seiner Verriegelungsposition vorliegende Verriegelungselement das Verstellteil in der ersten Position verriegelbar ist und bei in seiner Freigabeposition vorliegendem Verriegelungselement das Verstellteil aus der ersten Position in die zweite Position verlagerbar ist, und
• - eine elektronische Detektionseinrichtung zur Generierung wenigstens eines (elektronischen) Zustandssignals, über das signalisiert wird, ob sich das Verriegelungselement in seiner Verriegelungsposition befindet.

The proposed solution provides, in particular, an adjustment assembly for a vehicle that includes at least the following:

• - an adjustment drive for adjusting at least one adjustment part of the adjustment assembly between at least a second position and a first position,
• - A locking device for locking the adjusting part in the first position, wherein
  • the locking device has a locking element which can be adjusted between a release position and a locking position, and
  • - The adjusting part can be locked in the first position via the locking element present in its locking position and, when the locking element is in its release position, the adjusting part can be displaced from the first position into the second position, and
• - An electronic detection device for generating at least one (electronic) status signal, which signals whether the locking element is in its locking position.

Furthermore, control electronics are provided which make the generation of at least one control signal dependent both on a position signal representative of the current position of the adjustment part and on the at least one status signal.

The proposed solution is thus based on the basic idea of taking into account both a current position of the adjusting part and a current state of a locking device provided for locking the adjusting part in the first position for generating at least one control signal. Control electronics provided are consequently configured both for evaluating a position signal representative of the current position of the adjustment part and for evaluating the at least one status signal. The generation of the at least one control signal is thus ultimately based at least on both signals or on corresponding signal values for the two signals. The proposed solution thus starts with a cumulative evaluation of two different signals which are representative of the current position of the adjustment part on the one hand and representative of a state of the locking device provided for locking the first position on the other.

• - für eine Verstellung des Verstellteils mithilfe des Verstellantriebs aus der zweiten Position in Richtung der ersten Position zu prüfen, ob über das wenigstens eine Zustandssignal signalisiert wird, dass sich das Verriegelungselement in seiner Verriegelungsposition befindet, und/oder
• - auf Basis des Positionssignals zu prüfen, ob sich bei Vorliegen des wenigstens einen die Einnahme der Verriegelungsposition durch das Verriegelungselement signalisierenden Zustandssignals das Verstellteil in der ersten Position befindet.

In one embodiment, the control electronics are then configured, for example,

• to check for an adjustment of the adjustment part with the aid of the adjustment drive from the second position in the direction of the first position whether the at least one status signal indicates that the locking element is in its locking position, and / or
• to check on the basis of the position signal whether the adjustment part is in the first position when the at least one status signal is present, which signals the locking element to assume the locking position.

The embodiment variant first mentioned above aims in particular to ensure that the adjustment part can actually be locked in the first position as intended using the locking device before an adjustment is triggered, an adjustment is triggered or at least before the adjustment of the adjustment part is triggered. If, for example, the status signal signals that the locking element of the locking device is not in its release position, locking in the first position is usually impossible, at least without additional intervention by a person or by a mechanism and / or electronics. If a check is only made after a triggered adjustment movement of the adjustment part has been completed and after the first position has been reached, whether the presence of the locking element is signaled in its locking position via the locking device, this can lead to incorrect evaluations. In such a situation, the at least one status signal would, under certain circumstances, signal that the locking element is in its locking position, although the adjustment part is not locked at all because the locking element was already in its locking position. On the basis of the proposed solution and the intended combination of at least one position signal for the adjustment part and at least one status signal for the locking element, such errors can be reliably avoided and, for example, additional safety functions can be implemented in a simple manner.

The same applies in principle to the aforementioned second alternative, in which a position of the adjustment part is checked on the basis of the position signal when the locking element signals that the locking element has assumed the locking position. In this context, for example, the status signal is compared with the current adjustment position of the adjustment part signaled by the position signal in order to decide (with the help of an electronic evaluation logic of the control electronics) whether the corresponding status signal can actually also be used to signal a locking of the adjustment part. If, for example, the adjustment part is in an adjustment position in which locking - for example with a body-mounted component or a body-mounted assembly - is simply not possible, e.g. in the second position, the status signal of the locking device which is still present and which signals locking can be used close a malfunction. The status signal and position signal can thus be correlated with one another so that, for example, a plausibility check can be carried out for the status signal of the locking device without more than two different statuses having to be able to be signaled for the status signal. For example, it is sufficient that only exactly two states of the locking device can be signaled via the state signal, on the one hand the presence of the locking element in its locking position and on the other hand the presence of the locking element outside of its locking position. Whether there is a faulty locking despite the locking element in its locking position can be decided by using the additional position signal. This simplifies the design of a sensor system to be provided for generating the status signal on the locking device. Here, for example, a simple microswitch is sufficient for status recognition.

For example, for the embodiment variant first discussed above, the control electronics can be configured to check, before an adjustment, during an adjustment and / or before completing an adjustment of the adjustment part with the aid of the adjustment drive from the second position in the direction of the first position, whether via the at least one State signal is signaled that the locking element is in its locking position. The control electronics therefore check whether, before an adjustment, during an adjustment and / or before the completion of an adjustment of the adjustment part, which takes place with the aid of the adjustment drive from the second position in the direction of the first position, the locking element already signals that the locking element is in the locking position . If this is the case, there can consequently no longer be any intended locking via the locking element when the adjusting part reaches the first position, at least if there is no further electronic or user intervention beforehand.

For example, in such an embodiment variant, the control electronics are provided with those for adjusting the adjustment part Coupled adjustment drive and configured to block or reverse an adjustment using the adjustment drive in the direction of the second position via the control signal prior to an adjustment of the adjustment part when the at least one status signal indicates that the locking element is in its locking position. As a result, there is no adjustment of the adjustment part here if, due to the locking element already in its locking position, locking is no longer possible when the adjustment part assumes the first position. Alternatively, an adjustment movement of the adjustment part that may already have started in the direction of the first position can be stopped and reversed. In both of the aforementioned cases, it is avoided that the adjustment part is adjusted into the first position and then there is no locking of the adjustment part. This rules out the possibility that, for example, a vehicle user erroneously assumes that an adjustment part has been locked as intended in an assumed first position, even though no such locking has taken place. An incorrect assumption in this respect can harbor a considerable risk of safety and / or injury, in particular if, for example, the adjustment part is part of a seat frame or a vehicle door.

In one embodiment variant, the control electronics are configured to use the control signal to signal an acoustically, visually and / or haptically perceptible notice. An acoustically, visually and / or haptically perceptible indication can thus be triggered via the control signal when the at least one status signal signals that the locking element is in its locking position. For example, a warning can be output when the locking element is in its locking position, although in view of the current adjustment position of the adjustment part, proper locking with a component or assembly fixed to the body is excluded.

• - eines das Verriegelungselement fremdkraftbetätigt verstellenden Antriebs,
• - wenigstens einer weiteren Komponente der Verstellbaugruppe, insbesondere zur Verstellung der wenigstens einen weiteren Komponente der Verstellbaugruppe, und/oder
• - wenigstens einer Komponente des Fahrzeugs.

Alternatively or in addition, the control electronics can be configured to trigger a safety function via the control signal. A corresponding safety function then consists, for example, in a control

• - a drive that adjusts the locking element in an externally actuated manner,
• - At least one further component of the adjustment assembly, in particular for adjusting the at least one further component of the adjustment assembly, and / or
• - At least one component of the vehicle.

The control electronics are then configured accordingly, for example, to trigger a corresponding activation via the control signal.

For example, when a drive that adjusts the locking element by means of an external force is actuated, an adjustment of the locking element in the direction of the release position can be triggered. An adjustment of a further component of the adjustment assembly can relate, for example, to a securing element which arrests the locking element in its locking position. The adjustment of the locking element in the direction of its release position can only be permitted via a corresponding adjustment of such a securing element. For example, such a securing element is a locking bolt in a lock of the locking device.

The embodiment variants outlined above include in particular that the control signal is used to trigger a drive of the vehicle in order to block the vehicle from driving when the vehicle is stationary. The control signal generated by the control electronics can prevent the vehicle from moving if the evaluated position and status signals cannot be used to infer that the adjustment part to be adjusted is properly locked in its first position. This is particularly advantageous in the case of adjustment parts that are highly critical with regard to occupant safety, in order to minimize safety risks. If, for example, no proper locking of a closed vehicle door or the locking of a seat frame on a floor assembly of a vehicle seat can be determined electronically, the vehicle can be prevented from moving, at least until proper locking is ensured and / or a user has intervened.

In principle, the at least one position signal can originate from at least one sensor that is operatively connected to the adjusting part to be adjusted and / or from at least one sensor coupled to the adjusting drive for adjusting the adjusting part. For example, a position signal can originate from a Hall sensor of the adjustment drive and / or from a drive current signal. As an alternative or in addition, a position signal is sent back to an external sensor that detects the position of the adjustment part in a contactless manner. This can be, for example, an optical sensor or a radar sensor. However, other alternative measuring principles are also possible.

• - ein Teil eines Fahrzeugsitzes, insbesondere ein Teil eines Sitzuntergestells eines Fahrzeugsitzes sein,
• - Teil einer Fahrzeugtür sein oder
• - eine Klappe oder Abdeckung für einen Fahrzeuginnenraum des Fahrzeugs umfassen.

As already explained above, the adjustment part

• - be part of a vehicle seat, in particular part of a seat frame of a vehicle seat,
• - be part of a vehicle door or
• - Include a flap or cover for a vehicle interior of the vehicle.

In an adjustment part that is part of a vehicle seat, at least one adjustment of a component of the vehicle seat into a blocking position can be triggered in one embodiment variant via the control signal as a safety function, in which the component prevents a person from sitting on the vehicle seat. A corresponding embodiment variant then aims, for example, at ensuring that no person can sit on the vehicle seat when the seat frame is adjusted to a first position using an external force and is thus at least supported by external force and when the locking element cannot be detected in its release position. In such a situation, it is not guaranteed that the seat frame is / is properly locked in the first position to be assumed. For example, at least one adjustment of a headrest of the vehicle seat can be triggered via the control signal in order to move the headrest into a blocking position in which the headrest prevents a person from properly sitting on the vehicle seat. This includes, for example, that a foldable headrest of the vehicle seat is adjusted into a blocking position that is folded forward onto a front side of a backrest of the vehicle seat.

Alternatively, a component of the vehicle seat can be locked in a blocking position via the control signal. This includes, for example, that a headrest on a vehicle seat in a forwardly folded blocking position is prevented from being folded up or back into a normal use position above a backrest of the vehicle seat. A headrest that has been folded or folded in forwards is consequently locked in a blocking position defined in this way via the control signal when it is determined that the vehicle seat is in position and status signals for an external force-operated, in particular external force-assisted adjustment of the vehicle seat and in particular a seat underframe of the vehicle seat on the basis of the evaluated position and status signals the intended use position cannot be locked as intended.

As an alternative or in addition to the design variants explained above, it can be provided, for example, with an adjustment part that is part of a vehicle seat, that before or during an externally actuated adjustment movement of the vehicle seat controlled by the adjustment drive from a folded-forward non-use position, which can be seen as a second position ( For example, an easy-entry position, a table position or loading position) back to a position of use with the backrest upright, an alarm and / or safety function that prevents sitting is triggered if the vehicle seat is in the first position of use before it is returned to the first position it is detected on the basis of the status signal of the locking device that a locking element, for example in the form of a pivotable rotary latch, is in a locking position. In this fault case, a proper locking in this position of use with a floor assembly fixed to the body cannot be achieved simply by adjusting the vehicle seat into its position of use.

For example, in such a fault case, the vehicle seat can first be adjusted to a starting position and therefore back to a second position in which sitting is impossible.

Alternatively or in addition, a lock of the locking device can first be opened again and thus the locking element can be moved into its release position before the vehicle seat is adjusted to the first position (or the second position) or at least a corresponding adjustment movement is completed.

Alternatively or in addition, an error message can be output to a vehicle occupant. A signaling element that is suitable for this or is provided exclusively for this purpose and can be controlled via the control signal can be provided, for example, on the vehicle seat or near the seat.

As an alternative or in addition, the vehicle can be prevented from moving until the vehicle seat is properly locked in its first position and has been detected. Furthermore, as an alternative or in addition, the aforementioned measures with regard to at least one adjustable headrest provided on the vehicle seat can be triggered.

The proposed solution consequently relates in particular to a vehicle seat with a proposed adjustment assembly. In addition, in particular a vehicle door with a proposed adjustment assembly is the subject of the proposed solution.

In addition, the proposed solution relates to a method for adjusting at least one adjusting part for a vehicle.

Here, the at least one adjustment part can be adjusted between at least a second position and a first position, the at least one adjustment part being lockable in the first position with the aid of a locking device. This locking device has a locking element which can be adjusted between a release position and a locking position. The adjusting part can be locked in the first position via the locking element in its locking position, while the adjusting part can be displaced from the first position into the second position when the locking element is in its release position. In the context of the proposed method, the generation of at least one electronic control signal is made dependent both on a position signal representative of the current position of the adjustment part and on at least one status signal that signals whether the locking element is in its locking position.

A proposed method can be implemented in particular by an embodiment variant of a proposed adjustment assembly. Advantages and features of design variants of a proposed adjustment assembly explained above and below therefore also apply to design variants of a proposed method and vice versa.

The attached figures illustrate possible variants of the proposed solution by way of example.

• 1 in perspektivischer Ansicht eine Ausführungsvariante eines Fahrzeugsitzes mit einer vorgeschlagenen Verstellbaugruppe, über die ein Sitzuntergestell fremdkraftbetätigt relativ zu einer Bodenbaugruppe verstellbar ist und die zusätzliche Sicherheitsfunktionen implementiert, um insbesondere vor einer Verstellung in die in der 1 dargestellte Gebrauchsposition des Fahrzeugsitzes sicherzustellen, dass eine Verriegelung des Sitzuntergestells an der Bodenbaugruppe über zwei unterschiedlichen Längsseiten des Fahrzeugsitzes zugeordnete Verriegelungsvorrichtung bestimmungsgemäß erfolgen kann;
• 2 der Fahrzeugsitz der 1 in geschnittener Seitenansicht;
• 3 ausschnittsweise den Fahrzeugsitz der 1 und 2 mit Blick auf eine der Verriegelungsvorrichtung und einen Verstellantrieb für die Verstellung des Sitzuntergestells;
• 4A-4C unterschiedliche Phasen und Stellungen von Komponenten eines sitzseitigen Schlosses der Verriegelungsvorrichtung beim Vorklappen des Fahrzeugsitzes in eine zweite (Nichtgebrauchs-) Position jeweils mit Gegenüberstellung einer Seitenansicht des Fahrzeugsitzes;
• 5A-5C in mit den 4A bis 4C übereinstimmenden Ansichten das Schloss und den Fahrzeugsitz bei einem Zurückklappen des Fahrzeugsitzes in seine Gebrauchsposition;
• 6 exemplarisch das fahrzeugseitige Schloss in einem nicht bestimmungsgemäß verriegelnden Zustand, der gleichwohl der Erzeugung eines Zustandssignals auslöst, über das ansonsten eine bestimmungsgemäße Verriegelung angezeigt würde;
• 7 in mit der 2 übereinstimmender Ansicht der Fahrzeugsitz in einer vorgeklappten, zweiten Position mit unzulässig geschlossenen Schloss;
• 8A in mit der 2 übereinstimmender Ansicht der Fahrzeugsitz in einer Tischposition verriegelt mit der Bodenbaugruppe;
• 8B der Fahrzeugsitz der 8A in einer vorklappten zweiten Position mit unzulässig geschlossenem Schloss;
• 9 ein Ablaufdiagramm für eine Ausführungsvariante eines vorgeschlagenen Verfahrens, bei dem das Vorliegen des Schlosses in einem geschlossenen Zustand elektronisch geprüft wird, bevor eine Verstellung eines Sitzuntergestell des Fahrzeugsitzes erfolgt.

Here show:

• 1 a perspective view of an embodiment of a vehicle seat with a proposed adjustment assembly, via which a seat frame can be adjusted relative to a floor assembly, actuated by external force, and which implements additional safety functions, in particular to prevent adjustment in the 1 to ensure that the seat frame can be locked to the floor assembly by means of a locking device assigned to two different longitudinal sides of the vehicle seat as intended;
• 2 the vehicle seat of the 1 in sectioned side view;
• 3 excerpts from the vehicle seat of 1 and 2 with a view of one of the locking device and an adjustment drive for adjusting the seat frame;
• 4A-4C different phases and positions of components of a seat-side lock of the locking device when folding the vehicle seat forward into a second (non-use) position, each with a side view of the vehicle seat being compared;
• 5A-5C in with the 4A to 4C coinciding views of the lock and the vehicle seat when the vehicle seat is folded back into its position of use;
• 6th for example, the vehicle-side lock in a non-intended locking state, which nevertheless triggers the generation of a status signal via which an intended locking would otherwise be indicated;
• 7th in with the 2 matching view of the vehicle seat in a folded forward, second position with an impermissibly closed lock;
• 8A in with the 2 Corresponding view of the vehicle seat in a table position locked to the floor assembly;
• 8B the vehicle seat of the 8A in a folded forward position with the lock not properly closed;
• 9 a flowchart for an embodiment of a proposed method in which the presence of the lock in a closed state is checked electronically before an adjustment of a seat frame of the vehicle seat takes place.

The 1 shows a vehicle seat first in a perspective view F. with a variant of a proposed adjustment assembly. The vehicle seat F. has a seat frame G with two opposite side parts ST1 and ST2 on which a backrest RL is pivotably mounted. The seat frame G with the side panels ST1 and ST2 is on top rails 1B and 1B * a rail arrangement SA arranged. The rail arrangement SA is part of a floor assembly of the vehicle seat F. over which the vehicle seat F. can be connected to a body of a vehicle. For this purpose, the rail arrangement SA Under rails 1A and 1A * on, which are to be fixed to a vehicle floor and on which the top rails 1B and 1B * are displaceably mounted to a longitudinal displacement of the seat frame G to enable.

In the vehicle seat shown F. is it a vehicle seat for a second or third row of seats in a vehicle. The vehicle seat is accordingly F. not only along a seat longitudinal direction over the rail arrangement SA movable, but also from the in the 1 illustrated first (use) position in at least one second (non-use) position adjustable in which the vehicle seat F. provides additional cargo space or facilitates entry of a seat user into an area of the vehicle behind the vehicle seat. The seat frame is used for this G in a rear area of the side panels ST1 and ST2 via two locking devices VB1 and VB2 detachable with the top rails 1B and 1B * locked. When the lock is released, the vehicle seat can F. and in particular its seat frame G relative to the head rails 1B and 1B * be shifted, in particular pivoted. For example, a pivoting movement of the seat frame is here G forward across a front area of the head rails 1B and 1B * applied swing arm components provided.

Especially for resetting the vehicle seat F. in the in the 1 The vehicle seat has shown the position of use (but possibly also for folding forward) F. an adjustment drive on at least one long side 6th on. This adjustment drive 6th includes, for example, an electric motor in order to use an adjustment force generated by the electric motor to move the seat frame G externally operated with its rear area again the top rails 1B and 1B * approach and over the locking devices VB1 and VB2 with the head rails 1B and 1B * to re-engage. Via the adjustment drive 6th The seat frame can consequently be controlled G Adjusted back to a position of use and crash-proof with the rail arrangement SA be locked without a person at the vehicle seat F. must attack.

Any locking device VB1 and VB2 has, inter alia, a locking unit on the seat base side in the form of a lock S1 or S2 on. Part of this castle S1 or S2 is a pivotably mounted locking element in the form of a rotary latch 2 with a base assembly-side counter element in the form of a on the top rail 1B or 1B * accessible bolt 3 the locking device VB1 or VB2 can be brought into locking engagement to the seat frame G on the head rails 1B and 1B * to fix. The rotary latch shows this 2 a rotary latch jaw in a manner known per se 20th on (compare in particular 4A to 5C ), in which a section of the bolt 3 is recorded positively locking when the rotary latch 2 when the vehicle seat is in its position of use F. occupies a locking position.

To relocate the seat frame G relative to the rail arrangement SA to allow the rotary latch 2 be transferred to a release position. Here is the rotary latch 2 with the respective bolt 3 disengaged. In the present case, the rotary latch can be released 2 and, if necessary, their adjustment between the locking position and the release position also take place in an externally force-operated manner. Each lock on the seat has this S1 , S2 one lock drive each 5 on. How based on the sequences of the 4A to 4C and 5A to 5C is illustrated, the lock drive 5 for example in the position of use of the vehicle seat F. initially controlled to the rotary latch present in its locking position 2 to release and accordingly a pivoting movement of the rotary latch 2 around an axis of rotation D. to allow. This allows the rotary latch 2 around the axis of rotation D. in particular relative to a lock-proof locking element 4th be moved into their release position when using the adjustment drive 6th the rear, the respective lock S1 or S2 load-bearing end of an associated side panel ST1 or ST2 relocated and in particular from the associated head rail 1B , 1B * should be taken off. The rotary latch that can be adjusted to its release position 2 then consequently gives the respective bolt 3 free.

Will the vehicle seat F. with its seat frame G according to the 5A , 5B and 5C then swiveled back into its position of use and the locks are S1 and S2 opened as intended, the rotary latch present in its release position is opened 2 via the contact with the assigned bolt 3 automatically pivoted back into its locking position. The rotary case is in the locked position 2 via the lock drive 5 locked, for example via an additional locking bolt of the respective lock S1 or S2 .

The problem with the procedure described above, however, is one based on the 6th schematically illustrated situation in which at least one lock S1 or S2 when the vehicle seat is supposedly fully folded back into the position of use F. not with the associated bolt 3 is in engagement and thus the seat frame G not intended with the rail arrangement SA is (fully) locked. For example, the rotary latch 2 improperly (for example by user intervention) or also unintentionally (for example by hitting cargo) into its locking position, as long as the vehicle seat F. was still in its non-use position. Then the vehicle seat is then used F. Pivoted back to its position of use, the bolt can 3 not in the rotary latch mouth 20th the rotary latch 2 be included.

The proposed solution can effectively remedy this. In addition, electronically controlled additional measures can be taken with an unlocked vehicle seat F. to reduce or even avoid associated safety and injury risks.

So is the vehicle seat F. the 1 with additional control electronics 7th fitted. This control electronics 7th is particular with the locks S1 and S2 and the adjustment drive 6th coupled. The control electronics can do this 7th in particular lock status signals s5 the locks S1 and S2 in relation to one of the actuator 6th supplied position signals s61 set to the plausibility of the lock status signal s5 to consider.

So will the control electronics 7th for example via the lock status signals s5 communicated whether the rotary latch 2 in her in the 4A or 6th shown locking position or in a different rotational position. This is for example on the respective lock S1 , S2 a microswitch is provided that only works when the rotary latch is in the locking position 2 is closed. About the position signal s61 of the adjustment drive 6th receives the tax history 7th in turn, an electronic information about whether an adjustment of the seat frame G using the adjustment drive 6th present or not. The position signal signals s61 the control electronics 7th for example, a folded forward position of the vehicle seat according to the 5A . Is then with the corresponding position signals s61 via a lock status signal s5 a closed lock S1 or S2 signals, this is evaluated by the control electronics 7th as the presence of a safety-relevant (error) event that requires the triggering of a safety function.

• - das Zurückstellen des Fahrzeugsitzes F in die Gebrauchsposition blockiert,
• - die Ausgabe einer akustisch, visuell und/oder haptisch wahrnehmbaren Fehlermeldung auslöst,
• - das jeweilige Schloss S1 oder S2 öffnet.
• - bei eventuell bereits ausgelöster Verstellbewegung in Richtung der Gebrauchsposition den Fahrzeugsitz F wieder zurück in eine vorgeklappte Position verstellt und/oder
• - eine Verstellung mindestens einer an der Rückenlehne RL des Fahrzeugsitzes F vorgesehenen Kopfstütze in eine Blockierposition auslöst oder eine entsprechende bereits in einer solchen Blockierposition vorliegenden Kopfstütze gegen eine Verstellung in eine andere Position sperrt.

As part of a corresponding safety function, it can be provided, for example, that the control electronics 7th

• - the repositioning of the vehicle seat F. blocked in the position of use,
• - the output of an acoustically, visually and / or haptically perceptible error message triggers,
• - the respective lock S1 or S2 opens.
• - If the adjustment movement in the direction of the position of use has already been triggered, the vehicle seat F. adjusted back into a folded forward position and / or
• - An adjustment of at least one on the backrest RL of the vehicle seat F. triggers provided headrest into a blocking position or blocks a corresponding headrest already present in such a blocking position against being moved into another position.

The aim of the triggered safety functions is that either an adjustment to the position of use is excluded as long as both locks are not used S1 and S2 are open, or that at least also when the vehicle seat is in its use position again F. the sitting of a person on the vehicle seat F. is prevented. Alternatively or in addition, the control electronics 7th in such a case, the vehicle can also be prevented from moving off.

In the vehicle seat of the 1 , the Indian 2 in sectioned side view and in the 3 is shown with an enlarged section, the control electronics 7th for example via control signals s62 , s8 and s92 trigger corresponding safety functions.

The control signal s62 serves, for example, as a drive signal to control the adjustment drive 6th . Via the control / drive signal s62 can the adjustment drive 6th be blocked against adjustment back into the position of use, as long as at least one of the locks S1 , S2 is not open.

The control signal s8 is also used as an output signal to a signaling unit 8th directed. This signaling unit 8th can then for example comprise at least one signaling means which is provided on the seat side or at least in the vicinity of the seat and via which a corresponding (warning) message is output to a vehicle occupant when at least one of the locks S1 , S2 when the vehicle seat is to be adjusted back to its position of use F. is not open.

The control signal s92 can also be designed as an error signal to a higher-level on-board electronics of the vehicle. Such can be done via the control / error signal s92 For example, it can be electronically prevented that an engine of the vehicle is started or that even when the engine is started the vehicle cannot drive off as long as the vehicle seat is not properly locked F. in its position of use over both locks S1 and S2 based on the control electronics 7th applied signals is ensured.

The control electronics 7th the embodiment variant shown can also have an external position signal s91 get a current position of the vehicle seat F. and in particular the seat frame G relative to the rail arrangement SA can be signaled. The external position signal s91 goes back, for example, to a sensor system arranged in the vehicle, via which a seating position of the vehicle seat F. can be detected in a vehicle interior. For example, at least one optical sensor, such as a camera, in particular a ToF camera, and / or a radar sensor is provided on the interior side, via which a current adjustment position of the vehicle seat is provided F. in the vehicle interior and in particular its alignment with the rail arrangement SA can be detected without contact.

The 7th illustrates in a sectional side view, for example, a situation in which the control electronics 7th at least one of the safety functions explained above would be triggered. So here is the vehicle seat F. Folded forward into a second position, for example into a so-called easy-entry position. The rotary latch 2 of the castle S1 is in a locking position, so that when the rear one is swiveled back, the lock S1 load-bearing area of the seat frame G the lock S1 not with the assigned bolt 3 would lock.

The same applies to one based on the 8A and 8B depicted situation. This is in contrast to the 7th the backrest RL of the vehicle seat F. beforehand in the direction of the seat frame G been folded forward so that the vehicle seat F. takes a table position ( 8A) . From this table position, the vehicle seat can F. also, by unlocking the locks S1 and S2 , folded forward into a loading position ( 8B) . Is then assumed in the folded forward loading position according to the 8B e.g. the castle S1 closed when the vehicle seat F. should be folded back again, a safety function is automatically activated via the control electronics 7th triggered.

The 9 shows an example of a flow chart for a vehicle seat F. the 1 to 8B executable procedure.

So here is initially after triggering an adjustment of the seat frame G provided that via the control electronics 7th and position signals applied to it s61 and or s91 it is checked in which adjustment position the seat frame is G or the vehicle seat F. is located. For example, is the seat frame G The locks are lowered into a position of use S1 and S2 opened to allow adjustment via the adjustment drive 6th to allow in a folded forward adjustment position.

If, on the other hand, it is found that the seat frame G is not lowered, the control electronics lead 7th subsequently based on the lock status signals s5 an examination of whether the locks S1 , S2 are closed or not. Are both locks S1 and S2 not closed and therefore the rotary latches are located 2 both locks S1 and S2 in each case in a release position or are at least not blocked against pivoting into the release position, the vehicle seat is then adjusted F. using the adjustment drive 6th from a folded forward second position into a folded back first position, for example from an easy-entry position to a use position or from a loading position in a table position.

If, on the other hand, it is determined in the corresponding checking step that at least one of the locks S1 , S2 is closed, although the vehicle seat is F. is in a folded forward position, is then carried out by the control electronics 7th the triggering of one of the above-mentioned safety functions. A safety function can be, for example, an alarm and thus the output of an audible, visual and haptically perceptible warning, a blocking of the adjustment and / or a blocking of the start of a journey of the vehicle and / or a further or alternative safety function, such as the adjustment of at least one headrest of the Vehicle seat F. into a blocking position or the locking of the at least one headrest in a blocking position in which an intended sitting on the vehicle seat F. is excluded, include.

The proposed solution can be used in particular in connection with a vehicle seat F. an increased level of security can be provided. However, the proposed solution is not restricted to a corresponding application and can also be used in other adjustment assemblies on or in a vehicle.

For example, within the framework of the proposed solution, when a vehicle door to be closed is adjusted by an external force and thus in particular supported by an external force, a corresponding check is possible to determine whether a door lock of a door-side locking device is closed or not. Thus, for example, a safety function can also be triggered automatically in such an adjustment assembly if it is determined via control electronics on the vehicle door to be closed that a locking element of the door lock is in its locking position in which - at least without further intervention - the vehicle door is not locked as intended with a body-side counter element (eg in the form of a bolt or bracket) is possible.

List of reference symbols

1A, 1A *

Lower rail

1B, 1B *

Head rail

2

Rotary latch (locking element)

20th

Rotary latch mouth

3

Bolt (counter element)

4th

Fuse element

5

Lock drive

6th

Adjustment drive

7th

Control electronics

8th

Signaling unit

D.

Axis of rotation

F.

Vehicle seat

G

Seat frame

RL

backrest

S1, S2

Lock

s5

Lock status signal (status signal)

s61

Position signal

s62

Drive signal (control signal)

s8

Output signal (control signal)

s91

(external) position signal

s92

Error signal (control signal)

SA

Rail arrangement

ST1, ST2

Side part

VB1, VB2

Locking device

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2326530 B1 [0003]

Claims (13)

Adjustment assembly for a vehicle, with at least - one adjustment drive (6) for adjusting at least one adjustment part (ST1, ST2) of the adjustment assembly between at least a second position and a first position, - a locking device (VB1, VB2) for locking the adjustment part (ST1, ST2) in the first position, wherein - the locking device (VB1, VB2) has a locking element (2) adjustable between a release position and a locking position and - via the locking element (2) present in its locking position, the adjustment part (ST1, ST2) in the first position can be locked and when the locking element (2) is in its release position, the adjustment part (ST1, ST2) can be displaced from the first position into the second position, and - an electronic detection device for generating at least one status signal (s5), which is used to signal whether the locking element (2) is in its Locking position is located, characterized in that control electronics (7) are provided which generate at least one control signal (s62, s8, s92) both from a position signal (s61, s91) representative of the current position of the adjustment part (ST1, ST2) and also makes dependent on the at least one status signal (s5). Adjustment assembly according to Claim 1 , characterized in that the control electronics (7) is configured to check for an adjustment of the adjustment part (ST1, ST2) with the aid of the adjustment drive (6) from the second position in the direction of the first position whether the at least one status signal (s5 ) it is signaled that the locking element (2) is in its locking position, and / or - on the basis of the position signal (s61, s91) to check whether the presence of the at least one signaling the assumption of the locking position by the locking element (2) State signal (s5) the adjustment part (ST1, ST2) is in the first position. Adjustment assembly according to Claim 1 or 2 , characterized in that the control electronics (7) is configured to move from the second position towards the first position with the aid of the adjustment drive (6) before an adjustment, during an adjustment and / or before an adjustment of the adjustment part (ST1, ST2) is completed check whether the at least one status signal (s5) signals that the locking element (2) is in its locking position. Adjustment assembly according to Claim 3 , characterized in that the control electronics (7) are coupled to the adjustment drive (6) and configured, via the control signal (s62) before an adjustment of the adjustment part (ST1, ST2), an adjustment with the aid of the adjustment drive (6) in the direction of the second position to block or reverse when it is signaled via the at least one status signal (s5) that the locking element (2) is in its locking position. Adjustment assembly according to one of the preceding claims, characterized in that the control electronics (7) are configured to signal an acoustically, visually and / or haptically perceptible notice via the control signal (s8). Adjustment assembly according to one of the preceding claims, characterized in that the control electronics (7) are configured to control via the control signal (s92) - a drive (5) which adjusts the locking element (2) by an external force, - at least one further component (4) of the Adjustment assembly, in particular for adjusting the at least one further component (4) of the adjustment assembly and / or - to trigger at least one component (8) of the vehicle. Adjustment assembly according to Claim 6 , characterized in that the control signal (s92) is used to control a drive of the vehicle in order to block the vehicle from driving when the vehicle is stationary. Adjustment assembly according to one of the preceding claims, characterized in that the adjustment part - a part (ST1, ST2) of a vehicle seat (F), in particular a part (ST1, ST2) of a seat frame (G) of a vehicle seat (F), - part of a Vehicle door is or - comprises a flap or cover for a vehicle interior of the vehicle. Adjustment assembly according to Claim 6 and after Claim 8 , characterized in that in the case of an adjustment part, the part (ST1, ST2) of a vehicle seat (F), at least one adjustment of a component of the vehicle seat (F) into a blocking position or the locking of a component via the control signal (s62, s92) of the vehicle seat (F) can be triggered in a blocking position in which the component prevents a person from sitting on the vehicle seat (F). Adjustment assembly according to Claim 9 , characterized in that the control signal (s62, s92) at least one adjustment of a headrest of the vehicle seat (F) can be triggered. Vehicle seat with an adjustment assembly according to one of the preceding claims Vehicle door with an adjustment assembly according to one of the Claims 1 to 8th . Method for adjusting at least one adjusting part (ST1, ST2) for a vehicle, wherein - the at least one adjusting part (ST1, ST2) is adjustable between at least a second position and a first position, - the at least one adjusting part (ST1, ST2) in the first position can be locked with the aid of a locking device (VB1, VB2), wherein - the locking device (VB1, VB2) has a locking element (2) adjustable between a release position and a locking position and - via the locking element (2) in its locking position, the adjusting part ( ST1, ST2) can be locked in the first position and, when the locking element (2) is in its release position, the adjustment part (ST1, ST2) can be displaced from the first position into the second position, and at least one status signal (s5) can be generated via which is signaled whether the locking element (2) be in its locking position takes place, characterized in that a generation of at least one electronic control signal (s62, s8, s92) both from a position signal (s61, s91) representative of the current position of the adjustment part (ST1, ST2) and from the at least one status signal (s5) is made dependent.

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