EP3272987B1 - Device for drivig a vehicle part allowing manual operation - Google Patents

Description

The invention relates to a device for power-operated and manual adjustment of a second vehicle part relative to a first vehicle part in an adjustment range according to the preamble of claim 1 and a method for power-operated and manual adjustment of a second vehicle part.

A generic device has at least one drive device, by means of which the second vehicle part can be adjusted in a power-operated manner in at least one adjustment direction and can be held in an adjustment position within the adjustment range relative to the first vehicle part. The second vehicle part is thus adjustably mounted relative to the first vehicle part and possibly even on this vehicle part itself, wherein, for example, an electromotive adjustment of the second vehicle part is made possible via the drive device. The second vehicle part is also held in an assumed adjustment position within the defined adjustment range by the drive device. For this purpose, for example, the drive device locks the second vehicle part against adjustment from the adjustment position. Such a device is known, for example, for the adjustment of a vehicle door, which is articulated on a vehicle body. The vehicle door can be opened and / or closed here by means of a door drive. Holding the vehicle door in a partial or complete The open adjustment position usually takes place continuously via the drive device.

In particular for devices for adjusting vehicle doors, there is a need to allow manual adjustment in addition to power-operated adjustment. In vehicle doors, for example, this is often solved in such a way that the vehicle door is opened by external power, but if a user exerts a sufficiently high force on the vehicle door, this is evaluated as an operating event and manual adjustment of the vehicle door is permitted. Here, the drive device changes from a stop position, in which the vehicle door is held in an assumed adjustment position, to a release position, in which manual adjustment of the vehicle door is permitted within the adjustment range and the drive device no longer locks the second vehicle part against an adjustment. A generic device is for example from the DE 10 2014 211 138 A1 known.

In this context, it is known to provide an electronic control device by means of which the drive device can be switched between the stop position and the release position in response to an operating event triggered by a user. Such an electronic control device can thus be used, for example, to switch the drive device into a release position when a user pulls or pushes a partially open vehicle door towards a closed position with a force exceeding a threshold value.

However, the freedom of movement of the vehicle door that usually occurs suddenly has proven to be less than appealing to a user. In addition, the sudden change to the release position over the service life of the device is associated with particular problems, since here, in particular due to temperature, actuating noises can occur and / or the difference between the locking effect of the drive device in the holding position and the freedom of movement of the vehicle door in the release position of the drive device is relatively large and for a user the change takes place at an apparently unpredictable time.

EP 3 017 984 A1 discloses a device according to the preamble of claim 1.

It is therefore an object of the invention to further improve a device of the type mentioned at the outset, in particular with regard to the ease of operation and the change between a stop position and a release position of the drive device.

This object is achieved both with an apparatus of claim 1 and with a method of claim 9.

Accordingly, a device according to the invention comprises an electronic control device, which is set up to control the drive device in response to an operating event triggered by a user, before switching to the release position, for an externally powered adjustment from the adjustment position to the adjustment direction in which the manual adjustment is to take place , wherein the electronic control device is coupled to at least one sensor device, by means of which an operating event triggered by the user can be electronically detected, via which the user signals which of the two possible adjustment directions the user wants to manually adjust the second vehicle part.

The basic idea of the invention, after it has been recognized that manual adjustment by the user is desired, is first to trigger an adjustment in the desired adjustment direction via the drive device before the drive device is switched to the release position. It is thus initially operated by external power - preferably for a comparatively short time of a few seconds or less than a second - an adjustment of the second vehicle part is carried out before the drive device switches to the release position and the second vehicle part is freely adjustable in the desired adjustment direction. As a result, an abrupt change between the stop position and the release position of the drive device is avoided. Instead, the drive device is controlled to perform a transition adjustment movement in order to make the transition from the power-operated to the manual adjustment appear less abrupt. If a drive force for adjusting the second vehicle part is still generated by the drive device during this transitional adjustment movement, this is no longer the case in the release position. Here the drive device does not counteract the manual adjustment nor does the drive force support the manual adjustment movement.

A device according to the invention can be used for the power-operated and manual adjustment of different vehicle parts. In particular, it is useful for adjusting a vehicle door, which is adjustably mounted on a vehicle body to expose a door opening. However, a device according to the invention can also be used for other adjustably mounted vehicle parts, for example a tailgate or trunk lid, a sliding door or a bonnet. For example, the drive device comprises a switchable and possibly self-locking transmission, which couples a drive motor with a drive element for transmitting an adjusting force in the holding position of the drive device this coupling interrupts in the release position. As an alternative or in addition, a coupling can be part of the drive device, which is closed in the holding position in order to lock the second vehicle part in an adjustment position and which is open in the release position in order to enable manual adjustment of the second vehicle part.

The at least one sensor device can be set up to detect (directly or indirectly) a force applied manually to the second vehicle part, by means of which the user pushes or pulls the second vehicle part out of the adjustment position into an adjustment direction. A correspondingly manually applied force can, for example, be detected (indirectly) within the drive device or can be detected (directly) on the vehicle part via a pressure sensor. If the respective force exceeds a threshold value stored in the control device, this is evaluated as an operating event and the drive device is activated to adjust the second vehicle part, so that the second vehicle part executes the transitional adjustment movement.

In order to allow the power-operated transition adjustment movement to run as barely as possible for a user, the electronic control device can be set up to first actuate the drive device in response to an operating event triggered by a user to power-operated adjustment for a period of less than two seconds before the drive device switched to the release position and deactivated if necessary. A comparatively short power-operated adjustment of the second vehicle part before manual adjustment (finally) is permitted, enables a short, smooth transition between the different switching states of the drive device. Before a user can only manually adjust the second vehicle part, the second vehicle part is thus already actuated by external power from the adjustment position in which the second vehicle part had remained stationary due to the drive device.

It has been shown that a transition adjustment movement of less than one second and in particular in the range from 40 ms to 650 ms, e.g. in the range from 50 ms to 300 ms leads to a transition between stop position and release position which is perceived by the user as pleasant and fluid. For example, the control device can be set up to first actuate the drive device in response to an operating event triggered by a user before switching to the release position to a power-operated adjustment for a period of about 500 ms in the adjustment direction desired by the user.

At least one setpoint curve for the drive device can be stored in the electronic control device, the setpoint curve being used to predefine the course of an adjustment speed of the second vehicle part in the case of the power-operated adjustment before switching to the release position. If an operating event for adjusting the second vehicle part is consequently recognized from the adjustment position, the electronic control device controls, for example, the power-operated adjustment of the second vehicle part via the at least one setpoint curve in such a way that the second vehicle part is adjusted with an incrementally or continuously increasing adjustment speed.

In principle, it can be provided that the target course curve runs in a ramp-like manner at least in one section. This includes in particular that the target curve has a ramp-like curve and - within the specified activation period of, for example, less than 2 seconds, in particular in the range from 40 ms to 650 ms, e.g. in the range from 50 ms to 300 ms - specifies a continuously increasing adjustment speed for the second vehicle part.

In one embodiment variant, the electronic control device is set up to control the drive device to adjust the second vehicle part from the adjustment position with different adjustment speeds, the different adjustment speeds also being dependent on a detected vehicle inclination, the adjustment direction, the adjustment position within the adjustment range and / or an actuating force which a user acts on the second vehicle part to trigger the operating event depends on. For example, the adjustment speed is varied, depending on whether the vehicle is on a slope, the second vehicle part is to be closed or opened, the second vehicle part is in the area of one end of the defined adjustment range or not (e.g. a vehicle door is already almost completely closed or is open) and / or a user for example, acts on the second vehicle part with high force (and thus wants to swing a vehicle door, for example).

In this context, it can also be provided that different set course curves for the drive device for specifying different courses of the adjustment speed are stored in the electronic control device, the different set course curves depending on the vehicle inclination, the adjustment direction, the adjustment position and / or the amount of the actuating force the electronic control device can be selected automatically. Information on the individual relevant parameters relating, for example, to a vehicle inclination, the desired adjustment direction, the current adjustment position of the second vehicle part and / or the amount of an actuating force can be provided to the electronic sensor device via separate sensors of the device and / or sensors already present on the vehicle. For example, a CAN bus can be used for transmission to the electronic sensor device of the device.

• in der Haltestellung ein Antriebsmotor der Antriebseinrichtung mit einem Antriebselement gekoppelt ist, über das eine motorische Verstellkraft zum fremdkraftbetätigten Verstellen des zweiten Fahrzeugteils übertragbar ist, und
• in der Freigabestellung eine Kopplung zwischen dem Antriebsmotor und dem Abtriebselement unterbrochen ist.

As already explained above, in one embodiment variant the drive device can have a switchable gear unit and / or a switchable clutch unit, via which

• in the holding position, a drive motor of the drive device is coupled to a drive element, via which a motor adjustment force for the power-operated adjustment of the second vehicle part can be transmitted, and
• in the release position, a coupling between the drive motor and the driven element is interrupted.

The gear unit or the clutch unit thus enables both a preferably electromotive adjustment of the second vehicle part and a manual adjustment. If the vehicle parts are to be adjusted in relation to one another by motor, the gear unit or the clutch unit is brought into a coupling state, so that a coupling is established between the drive motor and the assigned drive element and the second vehicle part can be adjusted by external power relative to the first vehicle part by driving the drive element. If the second vehicle part is to be moved manually, however, the gear unit or the clutch unit is brought into a freewheeling state, so that the drive element is decoupled from the drive motor. The drive element can then be moved independently of the drive motor, which enables manual adjustment of the second vehicle part without the drive motor having to be moved as well. According to the invention, it is provided in this context that at a Change from the stop position to the release position and thus from a coupling state to a freewheeling state when the second vehicle part is initially at rest, a power-operated transition adjustment movement by the drive motor takes place before a coupling between the drive motor and the drive element is interrupted - and for example a clutch is opened - and that Drive motor is stopped.

The invention further relates to a method for power-operated and for manual adjustment of a second vehicle part relative to a first vehicle part in a defined adjustment range.

• das zweite Fahrzeugteil mittels einer schaltbaren Antriebseinrichtung sowohl in eine Öffnungsrichtung als auch in entgegengestzter Richtung in eine Schließrichtung fremdkraftbetätigt verstellbar ist und in einer Verstellposition innerhalb des Verstellbereichs zwischen einer maximal geöffneten und vollständig geschlossenen Lage relativ zu dem zweiten Fahrzeugteil gehalten werden kann, wobei die Antriebseinrichtung zwischen einer Haltestellung und einer Freigabestellung schaltbar ist und das zweite Fahrzeugteil in der Haltestellung über die Antriebseinrichtung in einer Verstellposition gehalten und in der Freigabestellung manuell innerhalb des Verstellbereichs verstellbar ist, sowie
• die Antriebseinrichtung in Reaktion auf ein durch einen Nutzer ausgelöstes Bedienereignis von der Haltestellung in die Freigabestellung geschaltet wird, um ein manuelles Verstellen des zweiten Fahrzeugteils durch den Nutzer relativ zu dem ersten Fahrzeugteil zu gestatten.

A method according to the invention is based on the same basic idea as a device according to the invention and accordingly provides that

• the second vehicle part can be adjusted by means of a power switch by means of a switchable drive device both in an opening direction and in the opposite direction in a closing direction and can be held in an adjustment position within the adjustment range between a maximally open and fully closed position relative to the second vehicle part, the drive device between a stop position and a release position is switchable and the second vehicle part is held in the stop position by the drive device in an adjustment position and is manually adjustable in the release position within the adjustment range, and
• in response to an operating event triggered by a user, the drive device is switched from the stop position to the release position in order to allow the user to manually adjust the second vehicle part relative to the first vehicle part.

Furthermore, it is provided that the drive device, in response to the operating event triggered by a user, initially moves the second vehicle part, actuated by external power, from the adjustment position into the adjustment direction in which the manual adjustment is to take place, and the drive device is then switched to the release position, a by Operating event triggered by the user is electronically detected, via which the user signals which of the two possible adjustment directions the user wants to manually adjust the second vehicle part. Here too, when the second vehicle part is initially stationary, a transition adjustment movement of the second vehicle part takes place before the drive device changes to the release position and the second vehicle part is freely adjustable.

A method according to the invention can of course be carried out with a device according to the invention. Accordingly, the advantages and features of embodiment variants of a device according to the invention explained above and below also apply to variants of a method according to the invention and vice versa.

It should also be pointed out that an adjustment position within the defined adjustment range can also be understood to mean a position of the second vehicle part relative to the first vehicle part in which the second vehicle part is in one of two possible end positions of the adjustment range. For example, it can be provided that even a maximally open vehicle door is initially adjusted slightly and for a comparatively short period in the closing direction in the closing direction before the vehicle door is released and a user finally closes the vehicle door completely manually and presses (further) in the closing direction for this or draws.

The attached figures illustrate examples of possible embodiment variants of the invention.

Figur 1A

ausschnittsweise und in perspektivischer Ansicht ein Kraftfahrzeug mit einer an der Fahrzeugkarosserie schwenkbar gelagerten Fahrzeugtür, an der eine Variante einer erfindungsgemäßen Vorrichtung zum Einsatz kommt;

Figur 1B

in geschnittener Ansicht von oben die Fahrzeugtür der Figur 1A mit einem Ausschnitt der Fahrzeugkarosserie und Teilen einer Antriebseinrichtung;

Figur 2

schematisch das Zusammenwirken unterschiedlicher Sensoreinrichtungen mit einer elektronischen Steuereinrichtung zur Ansteuerung der Antriebseinrichtung der Figur 1B;

Figur 3

ein Geschwindigkeit-Zeit-Diagramm zur Veranschaulichung der Funktionsweise eines Ausführungsbeispiels einer erfindungsgemäßen Vorrichtung, die nach einem erfindungsgemäßen Verfahren betrieben wird;

Figur 4

ein Ablaufdiagramm eines Ausführungsbeispiels eines erfindungsgemäßen Verfahrens.

Here show:

Figure 1A

Detail and in perspective view of a motor vehicle with a vehicle door pivotally mounted on the vehicle body, on which a variant of a device according to the invention is used;

Figure 1B

in a sectional view from above the vehicle door Figure 1A with a section of the vehicle body and parts of a drive device;

Figure 2

schematically the interaction of different sensor devices with an electronic control device for controlling the drive device of the Figure 1B ;

Figure 3

a speed-time diagram to illustrate the operation of an embodiment of a device according to the invention, which is operated by a method according to the invention;

Figure 4

a flow diagram of an embodiment of a method according to the invention.

The Figure 1A shows a section of a (motor) vehicle 1 with a view of a partially opened vehicle door 11. The vehicle door 11 is articulated on a (vehicle) body 10 of the vehicle 1 and closes a door opening 12 in the closed state. The vehicle door can move along an opening direction O. 11 can be swung open.

As in the sectional view of the Figure 1B is shown, acts between the body 10 and the vehicle door 11, a device with a drive device 2, which has an adjusting part 21 in the form of a tether and is used to lock and adjust the vehicle door 11 relative to the body 10. The adjustment part 21 in the form of the tether is articulated around a joint 20 on the body 10, for example on the A pillar of the vehicle 1, and moves when the vehicle door 11 is pivoted relative to the vehicle door 11. The adjustment part 21 projects with this one end 211 into a door interior 110 of the vehicle door 11 and moves into this door interior 110 when the vehicle door 11 is adjusted.

The vehicle door 11, which is articulated on the body 10 via a door hinge 111, is in the present case adjustable via the device with the drive device in the form of a door drive 2, both in the opening direction O and in the opposite direction, in a closing direction S. Here, the door drive 2 is designed in such a way that the vehicle door 11 is now steplessly locked in an assumed adjustment position, a maximum open and completely closed position of the vehicle door 11, and consequently the partially or fully open vehicle door 11 is locked against adjustment via the door drive 2.

The door drive 2 is not designed exclusively for power-operated adjustment of the vehicle door 11. Rather, the door drive 2 also enables the vehicle door 11 to be adjusted manually, for example to close the vehicle door 11 in the closing direction S. For this purpose, the door drive 2 has, for example, a gear unit or a clutch unit, via which a drive motor of the door drive 2, for example an electric motor, is included is coupled to a drive element which interacts with the adjustment part 21 in the form of the tether and via which a motor adjustment force for adjusting the vehicle door 11 can be transmitted. The door drive 2 can be switched in order to interrupt a coupling between the drive motor and the drive element. In a coupled state, the door drive 2 is in a holding position in which the at least partially opened vehicle door 11 is held in an assumed adjustment position via the door drive 2. In the decoupled state, on the other hand, the door drive 2 is then in a release position in which the vehicle door 2 can be freely adjusted manually in the opening direction O or closing direction S and the door drive 2 no longer locks the vehicle door 11 against such an adjustment. An exemplary device with such a door drive 2 is for example from the DE 10 2014 211 138 A1 known.

When the vehicle door 11 is at least partially open, an electronic control device senses whether a user is manually trying to move the vehicle door 11, for example to close it again. If a manually applied actuating force on the vehicle door 11 exceeds a stored threshold value, the vehicle door 11 is released by the door drive 2. The door drive 2 changes from the holding position to its release position, for example by interrupting a coupling between the drive motor and the drive element on the transmission side or opening a clutch.

In practice, however, a change between the stop position and the release position usually takes place abruptly and is therefore unexpected for a user. This is also disadvantageous with regard to the greatest possible ease of use, since a user may find the change between the stop position and the release position to be haptically unpleasant and surprising.

In order to counter this problem, an exemplary embodiment of a solution according to the invention provides that an electronic control device 4 according to FIG Figure 2 is coupled. With the vehicle door 11 at rest and at least partially open, the vehicle door 11 is manually adjusted via this control device 4 in response to an operating event triggered by a user by means of the door drive 2 in an adjustment direction S or O, in which the user has signaled, in which the user has signaled want to adjust. Only then is the door drive 2 switched to the release position, so that the vehicle door 11 is freely adjustable. After the electronic detection of an operating event, the vehicle door 11 is thus initially operated for a certain and preferably comparably short time in the adjustment direction S or O in which a user pulls or pushes the vehicle door 11 before the door drive 2 then switches to the release position , which includes, for example, that a clutch of the door drive 2 is opened and a drive motor of the door drive 2 is stopped.

The vehicle door 11 is thus powered, for example, for a short time, that is, less than 2 seconds and in particular for a period in the range from 40 ms to 650 ms moves in the closing direction S when a user pulls or pushes the at least partially opened vehicle door 11 in the closing direction S. Only after the vehicle door 11 has been set in motion in the closing direction S does the door drive 2 change to its release position, so that the further adjustment in the closing direction S can be carried out solely by a manually applied force on the part of the user. In response to an operating event, which signals the user's wish to adjust the vehicle door 11, a power-operated transition movement in the desired adjustment direction S or O is carried out in order to make the transition between the stop position and the release position of the door drive 2 less abrupt and more fluid , The switch to the release position takes place here only after the vehicle door 11 has been set in motion by the door drive 2.

The door drive 2 can basically be regulated or controlled. Furthermore, at least one setpoint curve can be stored in the electronic control device 4, by means of which the curve of an adjustment speed v of the vehicle doors 11 is predetermined if the vehicle door 11 is to be adjusted in response to an operating event before a manual adjustment is permitted.

As with the Figure 2 is schematically illustrated, the control device 4 is provided with at least one first sensor device 31, which serves for the detection of the operating event, via which a user signals that a manual adjustment of the at least partially opened vehicle door 11 is desired. For this purpose, the first sensor device 31 comprises, for example, a force sensor and / or an acceleration sensor, as is shown, for example, in FIG DE 10 2016 211 777 is described. The control device can be coupled to further sensor devices 32, 33. A tilt of the vehicle 1 can be detected via a second sensor device 32, for example, while a third sensor device 33 detects how far the vehicle door 11 is open, that is to say which adjustment position it occupies within the permitted adjustment range.

The electronic sensor device 4 can now be set up to control the door drive 2 differently for a transition adjustment movement as a function of a signal or measured value or a plurality of signals or measured values from the sensor devices 31, 32 and 33. For example, the control device 4 can vary the actuation of the door drive 2 depending on the vehicle inclination, the adjustment direction S or O desired by the user, the current adjustment position of the vehicle door 11 and / or the level of the actuating force applied by a user. This variation includes, in particular, a variation in the duration of the activation of a drive motor of the door drive and / or the variation in a speed of the drive motor.

• das Fahrzeug um mehr als einen bestimmten Winkel bezüglich der Horizontalen geneigt ist (zum Beispiel an seinem Hang geparkt ist), zum Beispiel um mehr als 10° oder 25° geneigt ist;
• die Fahrzeugtür 11 geschlossen oder weiter geöffnet werden soll;
• die ruhende Fahrzeugtür 11 in einer ersten oder zweiten Hälfte des zugelassenen Verstellbereichs vorliegt, also näher an ihrer geschlossenen Lage oder näher an der maximal geöffneten Lage vorliegt (sodass zum Beispiel bei einer Verstellung in Schließrichtung S ein kürzerer oder längerer Verstellweg zurückgelegt werden muss); und/oder
• ein Nutzer mit hoher Kraft, d.h., eine einen hinterlegten Schwellwert übersteigenden Kraft auf die Fahrzeugtür 11 einwirkt, zum Beispiel um diese in Schließrichtung S schwungvoll zuzuschlagen.

Via the electronic control device 4, a speed curve when adjusting the vehicle door 11 during the transition adjustment movement can thus be varied depending on the vehicle inclination, the adjustment direction S or O, the adjustment position and / or the amount of the actuating force. For example, different target profile curves can also be stored in a memory area 40 of the control device 4, different target profile curves being stored for this purpose, for example, if

• the vehicle is inclined by more than a certain angle with respect to the horizontal (for example parked on its slope), for example inclined by more than 10 ° or 25 °;
• the vehicle door 11 is to be closed or opened further;
• the stationary vehicle door 11 is in a first or second half of the permitted adjustment range, i.e. closer to its closed position or closer to the maximum open position (so that, for example, an adjustment in the closing direction S requires a shorter or longer adjustment path to be covered); and or
• a user with high force, ie a force that exceeds a stored threshold value acts on the vehicle door 11, for example to swing it shut in the closing direction S.

Regardless of the presence of a plurality of target curve curves or the desired curve curves to be selected, one embodiment variant provides that a ramp-like speed curve is specified for the vehicle door 11 to be adjusted from a rest position during the transition adjustment movement via the electronic control device 4. This additionally improves the impression of a smooth transition to the free adjustability of the vehicle door 11 for the user.

Using the diagram of the Figure 3 the operation of a variant of the solution according to the invention is to be illustrated in more detail. In the diagram of the Figure 3 an adjustment speed v of the vehicle door 11 is plotted over time t. A negative adjustment speed -v shows an adjustment of the vehicle door 11 in Opening direction O on, while a positive adjustment speed v indicates an adjustment of the vehicle door 11 in the closing direction S.

Accordingly, in the Figure 3 First shown how the vehicle door 11 is adjusted at a speed -v ₁ along the opening direction O. The adjustment movement of the vehicle door 11 is braked at a time t ₁ , so that it comes to rest in a desired adjustment position at a time t ₂ . In this assumed adjustment position, the door drive 2 is in a stop position, so that the vehicle door 11 is locked in the assumed adjustment position via the door drive 2.

Now becomes sensory at a later time t ₃ , for example via the sensor device 31 Figure 2 If an operating event triggered by a user is detected, after which the vehicle door 11 is to be closed, the drive motor of the door drive 2 is briefly activated and a transition adjustment movement is triggered. During this transition adjustment movement, the vehicle door 11 is accelerated up to an adjustment speed v ₂ in a comparatively short period of time .DELTA.t = t ₄ - t ₃ . The time period Δt is less than one second and is, for example, in a range from less than 500 ms, in particular in the range from 50 ms to 300 ms.

At time t ₄ , the door drive 2 is then switched to the release position, which includes, for example, that a clutch of the door drive 2 is opened and the drive motor is switched off. Alternatively, the drive motor can of course also be switched off first and then a clutch of the door drive 2 can be opened, or both can take place simultaneously. Subsequent to the time t ₄ , the adjustment in the closing direction S is then only carried out manually by the user. It can be provided, for example, that the user continues to adjust the vehicle door 11 at approximately the same adjustment speed v ₂ until the vehicle door 11 is completely closed at the time t ₆ . Another in the Figure 3 The scenario illustrated by way of example provides that the user continues to accelerate the vehicle door 11 from a time t ₄ to a later time t ₅ to an adjustment speed v ₃ and then finally closes the vehicle door 11 approximately at this higher adjustment speed v ₃ .

Based on Figure 4 A possible method sequence for the operation of the device having the door drive 2 is illustrated in more detail using a flow chart as an example.

For a method step A1, the vehicle door 11 is initially immovable in an at least partially open adjustment position in which the door opening 12 is at least partially released. If an operating event is detected by sensors in this phase, via which a user signals that he wants to manually open or close the vehicle door 11 again, in a subsequent method step A2 the door drive 2 is actuated with a stored target curve. In this way, the vehicle door 11 is actuated by external power in a transitional adjustment movement in the desired adjustment direction S or O, possibly depending on the vehicle inclination and / or the amount of an actuating force applied by the user and for a comparatively short period of time, for example less than 500 ms, in particular for 50 ms to 300 ms.

After completion of the transition adjustment movement, the door drive 2 is then switched to its release position in a method step A3, and in particular a drive motor of the door drive 2 is switched off, so that the vehicle door 11 can be freely moved by an operating force manually applied by the user.

LIST OF REFERENCE NUMBERS

1

vehicle

10

Body (1st part of the vehicle)

11

Vehicle door (2nd vehicle part)

110

Door interior

111

door hinge

12

doorway

2

Door operator (drive device)

20

joint

21

Tether (adjustment part)

210,211

The End

31, 32, 33

sensor device

4

control device

40

storage area

O

opening direction

S

closing direction

Claims (10)

1. A device for motorically and manually adjusting a second vehicle part (11) relative to a first vehicle part (10) in an adjustment range, comprising at least

   - a driving device (2) by means of which the second vehicle part (11) is motorically adjustable both in opening direction (O) and in opposite direction in a closing direction (S) and can be held in an adjustment position within the adjustment range between a maximally open and a completely closed position relative to the first vehicle part (10), wherein the driving device (2) is switchable between a holding position and a release position and in the holding position the second vehicle part (11) is held in an adjustment position via the driving device (2) and in the release position is manually adjustable within the adjustment range, and

   - an electronic control device (4) by means of which the driving device (2) is switchable from the holding position into the release position in response to an operating event triggered by a user, in order to permit a manual adjustment of the second vehicle part (11) by the user relative to the first vehicle part (10),

   characterized in that
   the electronic control device (4) is configured to, in response to an operating event triggered by a user, initially actuate the driving device (2) for a power-operated adjustment out of the adjustment position in that adjustment direction (S, O) in which the manual adjustment is to be made before switching into the release position, and the electronic control device (4) is coupled with at least one sensor unit (31) by means of which an operating event triggered by a user is electronically detectable, via which it is signaled by the user in what of the two possible adjustment directions (S, O) the user wants to manually adjust the second vehicle part (11).
2. The device according to claim 1, characterized in that the at least one sensor unit (31) is configured to detect a force manually applied onto the second vehicle part (11), via which the second vehicle part (11) is pushed or pulled by the user from the adjustment position in an adjustment direction (S, O).
3. The device according to claim 1 or 2, characterized in that the electronic control device (4) is configured to initially actuate the driving device (2) for a power-operated adjustment for a period of less than 2 seconds, in particular for a period of less than one second, and in particular for a period in the range of 40 ms to 650 ms or 50 ms to 300 ms in response to an operating event triggered by a user before switching into the release position.
4. The device according to any of the preceding claims, characterized in that in the electronic control device (4) at least one desired profile curve is stored for the driving device (2), by which during the power-operated adjustment before switching into the release position the course of an adjustment speed (v) of the second vehicle part (11) is specified.
5. The device according to claim 4, characterized in that the desired profile curve extends in a ramp-like manner at least in one portion.
6. The device according to any of the preceding claims, characterized in that the electronic control device (4) is configured to actuate the driving device (2) to motorically adjust the second vehicle part (1) out of the adjustment position with different adjustment speeds, namely in dependence on a detected vehicle inclination, in dependence on the adjustment direction (S, O), in dependence on the adjustment position within the adjustment range and/or in dependence on an actuating force with which a user acts on the second vehicle part (11), in order to trigger the operating event.
7. The device according to any of claims 4 or 5 and claim 6, characterized in that in the electronic control device (4) different desired profile curves for the driving device (2) are stored to specify different profiles of the adjustment speed in dependence on the vehicle inclination, the adjustment direction (S, O), the adjustment position and/or the height of the actuating force.
8. The device according to any of the preceding claims, characterized in that the driving device (2) includes a switchable transmission unit and/or a switchable coupling unit via which

   - in the holding position a drive motor of the driving device (2) is coupled with a drive element via which a motoric adjusting force for the power-operated adjustment of the second vehicle part (11) can be transmitted, and

   - in the release position a coupling between the drive motor and the drive element is interrupted.
9. A method for motorically and manually adjusting a second vehicle part (11) relative to a first vehicle part (10) in an adjustment range, wherein

   - the second vehicle part (11) is motorically adjustable both in opening direction (O) and in opposite direction in a closing direction (S) by means of a switchable driving device (2) and can be held in an adjustment position within the adjustment range between a maximally open and a completely closed position relative to the first vehicle part (10), wherein the driving device (2) is switchable between a holding position and a release position and in the holding position the second vehicle part (11) is held in an adjustment position via the driving device (2) and in the release position is manually adjustable within the adjustment range, and

   - the driving device (2) is switched from the holding position into the release position (2) in response to an operating event triggered by a user, in order to permit a manual adjustment of the second vehicle part (11) by the user relative to the first vehicle part (10),

   characterized in that
   in response to an operating event triggered by a user the driving device (2) initially motorically adjusts the second vehicle part (11) from the adjustment position in that adjustment direction (S, O) in which the manual adjustment is to be made, and the driving device (2) subsequently is switched into the release position, wherein an operating event triggered by a user is electronically detectable, via which it is signaled by the user in what of the two possible adjustment directions (S, O) the user wants to manually adjust the second vehicle part (11).
10. The method according to claim 9, characterized in that the method is carried out with an apparatus according to any of claims 1 to 8.

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