EP1070186A1

EP1070186A1 - Door lock of a motor vehicle or the like with an electric locking aid and opening aid

Info

Publication number: EP1070186A1
Application number: EP00912353A
Authority: EP
Inventors: Ulrike Lohfeld; Bernd Weyerstall; Bernardo Erices
Original assignee: Robert Bosch GmbH
Current assignee: Brose Schliesssysteme GmbH and Co KG
Priority date: 1999-02-04
Filing date: 2000-02-03
Publication date: 2001-01-24
Anticipated expiration: 2020-02-03
Also published as: DE19904663A1; JP2002536568A; EP1070186B1; ES2200841T3; DE19904663C2; US6439623B1; DE50002332D1; WO2000046472A1

Abstract

The invention relates to a door lock of a motor vehicle or the like. Said door lock comprises a latch (2) and ratchet that keeps the latch in the pre-locking or the main locking state. The door lock also comprises an electric drive (5) for the locking aid which is switched on after the latch (2) has reached a pre-locking state. The drive (5) then shifts the latch (2) into the main locking state. The door lock also comprises an electric drive for the opening aid (10) which is switched on in order to lift and pull out the ratchet from the main locking state or the pre-locking state of the latch (2). The door lock is characterised in that a coupling of the drive for the locking latch striker (5) is provided with a mechanical coupling element (9a) which can be lifted and pulled out for decoupling by specifically actuating the electric drive for the opening aid (10). In a preferred embodiment, the voltage for the electric drive for the opening aid (10) is supplied by an auxiliary battery (17) (active electric redundancy) that is constantly recharged by means of the electric wiring (15) of the motor vehicle. The voltage for the electric drive for the locking aid (5) is directly supplied by the electric wiring (15) of the motor vehicle.

Description

Motor vehicle door lock or the like with electrical locking aid and opening aid

The invention relates to a motor vehicle door lock or the like, primarily a motor vehicle side door lock, possibly also a motor vehicle rear door lock, tailgate lock or hood lock, with the features of the preamble of claim 1.

Motor vehicle door locks with auxiliary locking drives have been known for a long time and are now also being used in mid-range vehicles. Worm gear drives in particular are often used because they have particularly small dimensions. The drive element of the auxiliary locking drive is usually coupled to the lock latch in such a way that the lock latch can run freely in the direction of closing. This takes into account the fact that a strong slamming of the motor vehicle door should be able to take the lock latch ahead of the drive element.

Normally, in the case of a motorized, in particular electromotive, auxiliary locking drive, this is switched on after the lock latch has first reached a pre-closing position. The pre-locking position is usually the pre-engagement or a position slightly behind the pre-engagement in the closing direction (overstroke). From there, the lock latch is then transferred by motor to the main closed position, usually the main catch at the lock latch. The movement of the lock latch by means of the corresponding drive element of the auxiliary locking drive into the main closed position is associated with the problem that the motor vehicle door can be blocked if the drive element stops in front of the corresponding force transmission surface of the lock latch. Emergency situations can also occur, for example, during the closing process itself, that is when the motor vehicle door is pulled up by means of the auxiliary locking drive Limbs or clothing. Mechanical, key-operated emergency release elements (EP-B-0 496 736) or coupling levers which can be manually lifted from the outside opening handle (DE-A-38 36 771) serve as the solution known in the prior art.

In the known motor vehicle door lock or the like, from which the invention is based (DE - A - 197 14 992), an uncoupling option suitable for emergency purposes is provided for the locking auxiliary drive, which acts from outside without a mechanical effect on the lock mechanism comes out. For this purpose, an electromagnetic clutch is integrated into the reduction gear in this motor vehicle door lock, through which the electric drive motor can be coupled to and uncoupled from the drive element. The engaged electromagnetic clutch can also be disengaged depending on a triggering criterion while the electric drive motor is running. A preferred triggering criterion is a pull on the outer opening handle (or on the inner opening handle), which triggers an electrical switching process, which leads to the electromagnetic clutch being disengaged. This corresponds to the intuitive action that is also used in the case of purely mechanical motor vehicle door locks, in order to quickly open it again, for example, if the casing is jammed when the motor vehicle door is closed.

In the previously explained prior art (DE - A - 197 14 992) it is also explained that, as alternatives, a motor shutdown or reversal of the direction of rotation of the electric drive motor of the auxiliary locking drive could also be provided on the basis of the triggering criterion.

For further state of the art on this subject and exemplary embodiments of corresponding auxiliary locking drives, reference may be made to DE-A-197 14 992.

The previously explained, the starting point for the teaching of the invention, motor vehicle door lock or the like is, moreover, an electric lock of a modern design, in which an electric auxiliary opening drive is also provided, which is switched on in order to release the pawl from the main catch or the catch Lift lock latch to open the door. Trigger criteria rium is here also a pull on the inside opening handle or on the outside opening handle when the motor vehicle door lock is unlocked or the like. This actuates the electric auxiliary opening drive, which then acts on the pawl so that it is lifted out. In principle, detailed solutions for this have been known for a long time, including from DE-A-29 49

319 and DE - A - 32 42 527.

For a purely electric lock, that is to say a motor vehicle door lock or the like with an electric auxiliary opening drive, the question of "redundancy" is always important for an emergency. Mechanical redundancies are used in many exemplary embodiments. In addition to being lifted out by means of the auxiliary opening drive, the pawl can then also be lifted out mechanically, for example from a locking cylinder (EP-B-0 496 736). However, a purely electrically redundant system (DE - A - 29 49 319) is already known, which is characterized in that in addition to the

Main battery of the vehicle electrical system, an auxiliary battery is provided. The safety-relevant systems and thus in particular the electric auxiliary opening drive of the motor vehicle door lock are supplied by the additional battery as the primary energy source. The additional battery is only recharged in a suitable manner from the main battery of the vehicle electrical system. Discharge of the additional battery for the safety-relevant systems back into the main battery of the vehicle electrical system is prevented by circuitry measures. This system ensures that the safety-related systems supplied from the auxiliary battery continue to function even if the power of the on-board electrical system fails, for example after an accident (tearing off cable connections, etc.). N / A-. Of course, the additional battery as an active element must be continuously monitored for its charge status.

The teaching of the present invention is based on the problem of optimizing an electric motor vehicle door lock or the like with an electrical locking aid and an electrical opening aid in terms of construction and security.

The above-mentioned object is in a motor vehicle door lock or the like. With the features of the preamble of claim 1 by the features of the characterizing part of claim 1 solved. Advantageous refinements and developments are the subject of the dependent claims.

According to the invention, the additional electrical component required in the case of the purely electrically operated motor vehicle door lock or the like which forms the starting point, namely the electromagnetic clutch in the drive train of the auxiliary locking drive, is replaced by the mechanical coupling element which can be extracted for disengaging. Its actuation takes place using the electrical opening auxiliary drive which is present anyway and which is actuated in one actuating variant in such a way that it lifts this coupling element of the closing auxiliary drive. The previously separate locking aid drive systems on the one hand and opening aid on the other hand are linked here in terms of control technology, specifically in such a way that the electric opening aid drive intervenes as an emergency actuation in the power transmission train of the locking aid drive. The electrical circuitry requirements for a purely electrically operated motor vehicle door lock or the like are thus optimally utilized.

The teaching of the invention is of particular importance in realizing active, electrical redundancy with an additional battery, as is known per se from further prior art. In this case, the optimization according to the teaching of the invention is achieved in that the power supply of the electric auxiliary locking drive does not take place via the recharged auxiliary battery, but directly from the vehicle electrical system. This solution according to the invention takes into account the fact that it is unfavorable to conduct the considerable current which the auxiliary locking drive consumes via the auxiliary battery. This can be taken directly from the vehicle electrical system without further ado, but also without endangering safety. If the on-board electrical system fails, the auxiliary locking drive will not work, but this will only result in a loss of comfort, no loss in terms of safety. The power supply to the auxiliary opening drive, which also continues to perform the emergency function for the auxiliary closing drive, remains the optimal solution in terms of security.

The invention is explained in more detail below with reference to a drawing that shows exemplary embodiments only. In the drawing shows 1 is a schematic representation of a first embodiment of a motor vehicle door lock according to the invention or the like, shown using a side lock,

Fig. 2 shows the motor vehicle door lock from Fig. 1 in a schematic

Illustration, view from the left, open, the auxiliary locking drive itself omitted, all functional parts in the rest position with the motor vehicle door closed,

3 corresponding representation of the motor vehicle door lock or the like with the dome element of the auxiliary locking drive raised,

4 shows, in a representation similar to FIG. 2, a further exemplary embodiment of a motor vehicle door lock according to the invention or the like, again shown as a side door lock, all functional parts in the pre-latched position,

Fig. 5 the motor vehicle door lock or the like. From Fig. 4 in a corresponding

Representation, the coupling element of the auxiliary locking drive is lifted,

Fig. 6 in a schematic representation of a circuit diagram for connecting the electric drives of the motor vehicle door lock or the like. To an electrical system of a motor vehicle "Gös ¹ -.

The drawing schematically shows a motor vehicle door lock or the like in the form of a motor vehicle side door lock, the expansions which have been explained in the general part of the description apply.

Fig. 1 first shows the motor vehicle door lock with a housing 1 and a lock latch 2 indicated therein, mostly in the form of a fork rotary latch. Also indicated in FIG. 1 in dashed lines is a pawl 3 holding the latch 2 in a main catch 2a and a catch 2b. The main catch 2a and catch 2b are shown in FIG. 2, there is However, the pawl 3, which is subjected to pressure, cannot be seen because it is covered by components arranged in planes above it. A corresponding pawl which is subjected to pressure can be clearly seen in FIG. 4, for example.

Also shown in the figures is a striker 4, which is a striker 4 designed as a striker. Other locking wedges 4 in the form of locking bolts etc. are of course also known and can be used.

In Fig. 1 is now the electric auxiliary lock drive 5 of this motor vehicle door lock or the like, which is switched on after the lock latch 2 has reached a pre-closing position (explained in the general part of the description). When the auxiliary locking drive 5 has been switched on, the auxiliary locking drive 5 transfers the lock latch 2 into the main locking position shown in FIG. The pre-closing position can be the reaching of the pre-catch 2b or the reaching of a certain position of the motor vehicle door with respect to the body, for example with a remaining gap of 6 mm. The lock latch 2 is then conveniently transferred to the main locking position by means of the motorized locking aid.

The auxiliary locking drive 5 regularly has an electric drive motor 6 and a reduction gear 7, which is coupled on the output side to the lock latch 2 with a drive element 8. In the illustrated embodiment, the drive element 8 is an arcuate lever with a dental arch 8a at the lower edge, with which a pinion 7a of the reduction gear 7 meshes.

A clutch 9 to the lock latch 2 can optionally be electrically disengaged. In the exemplary embodiment shown, the coupling 9 has a mechanical coupling element 9a that can be lifted out for disengaging.

In the embodiment shown in FIGS. 2 and 3, the lock latch 2 has double the width at the latch 2b. At the preliminary catch 2b, both the

Pawl 3 as well as the coupling element lying in the plane above 9a of the clutch 9 of the auxiliary locking drive 5. However, FIG. 2 shows the main locking position - main catch 2a - with the auxiliary locking drive 5 moved back into the starting position and, to that extent, the coupling element 9a currently inoperative. In this main locking position shown in FIG. 2, the lock latch 2 is held in the main catch 2a solely by the pawl 3.

Also evident in FIGS. 2 and 3 is an electric auxiliary opening drive 10 which is switched on in order to lift the pawl 3 out of the main catch 2a or the catch 2b of the lock latch 2, that is to say an opening of the motor vehicle door lock or the like and so on to effect the motor vehicle door. The auxiliary opening drive 10 also has an electric drive motor 11 and a reduction gear 12. In this respect, the exemplary embodiment shown shows a preferred embodiment for the reduction gear 12, without this being understood as restrictive. The reduction gear 12 is namely designed as a worm gear with worm driven by the drive motor 11 and coupled with this worm (meshing) worm wheel 13 with a drive pin 14 located thereon. In contrast, in the exemplary embodiment shown, the auxiliary locking drive 5 is equipped with a gear angular gear as a reduction gear 7, which is also not to be understood as limiting. In principle, the auxiliary locking drive 5 could also be designed as a worm gear drive, in any case it could also work with an eccentric instead of a pinion as a force transmission element.

It is now interesting that the coupling element 9a of the coupling 9 of the auxiliary locking drive 5 can be lifted out by a correspondingly controlled actuation of the auxiliary electric opening drive 10. It is essential that the auxiliary opening drive 10 can not only lift the pawl 3, but also, with a correspondingly different control, the coupling element 9a of the coupling 9 of the auxiliary closing drive 5. The electric drive motor 11 of the auxiliary opening drive 10 thus also acts in the power transmission train of the auxiliary closing drive 5 in. In this way, despite the absence of any mechanical emergency actuation elements, an additional electrical component such as the previous electromagnetic clutch in the reduction gear 7 of the locking auxiliary drive 5 can be saved. - o -

The concept explained above is of particular importance when the power supply to the electric auxiliary opening drive 10 takes place via an auxiliary battery 17 which is always recharged from the vehicle electrical system 15 with the main battery 16 of the motor vehicle (active electrical redundancy). This is shown in FIG. 6. This ensures that the emergency actuation of the clutch 9 of the auxiliary locking drive 5 is also ensured at all times. However, in order not to stress the auxiliary battery 17 too much, it is further provided that the power supply to the electric auxiliary locking drive 5 takes place directly from the vehicle electrical system 15, that is to say not via the auxiliary battery 17. The high power consumption of the auxiliary locking drive 5 is thus satisfied directly from the on-board electrical system 15; if the on-board electrical system 15 fails, for example in the event of an accident, the auxiliary locking drive 5 then fails, but this is not critical because its function is not safety-related and because the safety-relevant one One component of this function, namely the emergency uncoupling, is carried out by means of the auxiliary opening drive 10 secured by the additional battery 17.

In detail, in the exemplary embodiment shown in FIGS. 2 and 3, it is now provided that the coupling element 9a of the coupling 9 is an additional pawl that only engages in the preliminary catch 2b of the lock latch 2. In the exemplary embodiment shown, this is pivotably mounted on the drive element 8 designed as an arcuate lever at the bearing point shown, the drive element 8 itself being mounted on the same axis of rotation as the lock latch 2 in the exemplary embodiment shown. By moving the components involved, there is no relative displacement in this conception because the pivot axis is the same. This is an advantage in terms of power transmission ratios.

In the exemplary embodiment shown in FIGS. 2 and 3, the auxiliary locking drive 5 has a reversible drive motor 6. Controlled by appropriate switching points, the drive motor 6 runs in one direction until the main closed position is reached, then it is reversed and runs in the opposite direction back to the rest position. This position is in

Fig. 2 shown. Alternatively, it could also be provided that the auxiliary locking drive 5 be equipped with a non-reversible drive motor 6. It would then be expedient to design the reduction gear 7 in a reversing manner, for example to use the eccentric already explained above as the drive element, which can then run through in order to reach the starting position again. Of course, this is not possible with the illustrated solution with tooth arch 8a and pinion 7a.

With regard to the auxiliary opening drive 10, the first exemplary embodiment in FIGS. 1 to 3 shows a variant in which an output element 13 that is movable in two opposite directions of rotation is provided, which in the exemplary embodiment shown is formed by the worm wheel of the reduction gear 12. When moving in one direction of rotation, that is the clockwise direction in FIGS. 2 and 3, the pawl 3 and the coupling element 9a are lifted, here by means of the driving pin 14 running against a pawl lever 18. When the output element 13 moves in the other direction of rotation, only the coupling element 9a of the auxiliary locking drive 5 is lifted. This distinction has the advantage that, in terms of circuitry, the emergency decoupling of the auxiliary locking drive 5 is treated differently depending on whether the motor vehicle door lock as a whole is in a secured or unlocked state (locked or unlocked).

When locked, the motor vehicle door lock should not be able to be opened from the outside opening handle. Such a condition exists, for example, if a rear side door is still slammed when the locking system is already secured. If the door is closed in this state and the auxiliary locking drive 5 is switched on after reaching the pre-closed position, the lock latch 2 is closed. Is now pulled for the purpose of emergency decoupling on the outside opening handle and a corresponding switching pulse is triggered (the same can also be done when pulling the inside opening handle), the electric drive motor 11 of the auxiliary opening drive 10 is started and drives the worm wheel 13 counterclockwise. As a result, the coupling element 9a of the auxiliary locking drive 5 is lifted, but the pawl 3 remains unaffected. The lock latch 2 therefore only falls back to the latch 2b, where it becomes caught by the pawl 3. The door remains in the pre-latching division and remains closed.

If a corresponding handling is carried out with the motor vehicle door lock unlocked, pulling on the outer opening handle for the purpose of emergency decoupling during the closing process leads to activation of the electric drive motor 11 of the auxiliary opening drive 10 in the opposite direction of rotation. The worm wheel 13 is moved clockwise and not only the coupling element 9a is lifted out, but also the pawl 3 is released. In this case, the motor vehicle door opens.

The exemplary embodiment shown shows that, in order to implement the previously explained function, the output element 13, that is to say the worm wheel, of the auxiliary opening drive 10, on the one hand the pawl lever 18 with a freewheel lever 19, which can only be carried in one direction by the pawl lever 18, and on the other hand a decoupling lever 20 lifting the coupling element 9a is to ^• Όgeordnet.

In the exemplary embodiment shown, it is provided that the freewheel lever 19 has a section 19a which holds the coupling element 9a, if appropriate over the entire movement path during the closing process, in the raised position. This section 19a is designed here as an arcuate backdrop or career.

FIG. 3 shows the position which is assumed for the emergency uncoupling when the motor vehicle door lock or the like is secured. The driver pin 14 has been moved by the electric drive motor 11 by turning the worm wheel 13 counterclockwise to the decoupling lever 20 and has this around a fixed pivot axis on the housing 1, which in the illustrated embodiment with the pivot axis of the coupling element 9a shown in the position of the drive element shown 8 is aligned, pivoted clockwise. The decoupling lever 20 has taken along the freewheel lever 19, which has raised the coupling element 9a via the then raised section 19a. This lifting of the coupling element 9a takes place due to the arcuate course of the section 19a at every point on the arcuate movement path of the drive element 8. The pawl 3 and the pawl lever 18 have not been operated further in the previously explained example shown in FIG. 3. The pawl 3 thus holds the lock latch 2 unchanged in the main latch 2a in the illustrated embodiment. Somewhere along the path between the first position 2b and 2a would main catch the pawl 3 to remain in effect, so the latch 2 drive when falling back to the emergency decoupling Schließhilfsan- 5 in the first position 2b fan ^Λ <grΛen.

The further exemplary embodiment shown in FIGS. 4 and 5 shows another variant, in which the auxiliary opening drive 10 has an output element 13 (also a worm wheel) that can only be moved in one direction of rotation and can be reset to its initial position, which initially moves when moving in the actuating direction Coupling element 9a and then pawl 3 when moving further. In the illustrated embodiment, it is provided that the output element 13 of the auxiliary opening drive 10 is assigned a pawl lever 18 with one-sided freewheeling coupled with the pawl 3 on the one hand, and a decoupling lever 20 with which the coupling element 9a of the clutch 9 can be lifted out is assigned. The coupling element 9a of the clutch 9 coincides here with the drive element 8, both together are designed as a connecting rod of a crank mechanism output of the reduction gear 7. Here, the decoupling lever 20 has a section 20a, which may hold the coupling element 9a in the raised position over the entire movement path during the closing process, which is designed as an arcuate link and interacts with a corresponding section 20b on the drive element 8 / coupling element 9a.

5 shows that two power transmission elements in the form of driver pins 14a, b are arranged on the output element 13 of the auxiliary opening drive 10, each power transmission element 14a, b being one of the levers 18; 20 actuated. In FIG. 5, the driving pin 14a for the decoupling lever 20 has moved by approximately 60 ° clockwise by rotating the worm wheel 13 so that the decoupling lever 20 has been pivoted clockwise and the coupling element 9a / drive element 8 has moved so far has pulled up that it is free from the lock latch 2. Nevertheless the lock latch 2 is still held by the pawl 3, because the pawl lever 18 is unchanged as in Fig. 4. This is therefore first the emergency release.

In the event that the motor vehicle door is in a secured state in terms of circuitry, pulling on the outer opening handle, for example, only leads to this function, and the output element / worm gear 13 is not rotated. The pawl 3 remains engaged and would catch the latch 2 when returning to the preliminary catch 2b, as shown.

In the event of the unlocked state of the motor vehicle door lock, the actuation process of the auxiliary opening drive 10 continues, the worm wheel / output element 13 continues to rotate clockwise. Now the driver pin 14b also comes into contact with the pawl lever 18, pivots it clockwise and thereby lifts the pawl 3 out. After switching off, the auxiliary opening drive 10 returns to its starting position, which is shown in FIG. 4.

The transition from FIG. 4 to FIG. 5 shows the movement of the drive element 8 / coupling element 9a for the auxiliary locking drive 5 after the pre-closing position has been reached. The push rod attached to an eccentric 7b, which is at the same time the drive element 8 and the pivotable coupling element 9a, could, if it were not lifted, turn the lock latch 2 into the main closed position. The eccentric then moves back to the starting position by continuing the rotation by a further 180 °.

The circuit diagram from FIG. 6 has already been explained above in connection with the explanation of the teaching of claim 2, more is required here

Not comments.

Claims

Claims:

1. Motor vehicle door lock or the like. With a lock latch (2) and a locking latch (3) holding the lock latch in the main catch (2a) and the preliminary catch (2b), with an electric auxiliary locking drive (5) which is switched on after the lock latch (2) has reached a pre-closing position, and the lock latch (2) is then transferred by motor to the main closing position, the auxiliary locking drive (5) having an electric drive motor (6) and a reduction gear (7) which has a drive element on the output side (8) is coupled to the lock latch (2), and a coupling (9) to the lock latch (2) can optionally be electrically disengaged, with an electric auxiliary opening drive (10) which is switched on to lock the pawl (3). to be lifted out of the main catch (2a) or the preliminary catch (2b) of the lock latch (2), characterized in that the coupling (9) has a mechanical coupling element (9a) which can be lifted out for disengaging and which is provided by a the controlled actuation of the electric auxiliary opening drive (10) can be lifted out.

2. Motor vehicle door lock or the like according to claim 1, characterized in that the power supply to the electric auxiliary opening drive (10) takes place via an auxiliary battery (17) which is always recharged from the vehicle electrical system (15) (active electrical redundancy), Preferably, however, that the electrical locking auxiliary drive (5) is supplied with power directly from the vehicle electrical system (15).

3. Motor vehicle door lock or the like. According to claim 1 or 2, characterized in that the coupling element (9a) is only in the preliminary catch (2b) of the lock latch (2) incident additional pawl.

4. Motor vehicle door lock or the like. According to one of claims 1 to 3, characterized in that the auxiliary locking drive (5) has a reversible drive motor (6).

5. Motor vehicle door lock or the like. According to one of claims 1 to 3, characterized in that the auxiliary locking drive (5) is a non-reversible

Drive motor (6) connected to a reversing reduction gear, in particular with an eccentric drive element.

6. Motor vehicle door lock o. Like. According to one of claims 1 to 5, characterized in that the auxiliary locking drive (5) after transferring the lock latch (2) in the main closed position or after an interruption of the movement returns to the starting position.

7. Motor vehicle door lock or the like. According to one of claims 1 to 6, characterized in that the auxiliary opening drive (10) has a movable in two directions output element (13) which, when moving in one direction of rotation, the pawl (3) and the coupling element (9a) lifts and only moves the coupling element (9a) when moving in the other direction of rotation.

8. Motor vehicle door lock or the like. According to claim 7, characterized in that the output element (13) of the auxiliary opening drive (10) on the one hand a pawl lever (18) with a freewheel lever (19) from the pawl lever (18) in one direction only can be taken along, on the other hand a decoupling lever (20) for lifting out the coupling element (9a) is assigned.

9. Motor vehicle door lock or the like. According to claim 8, characterized in that the freewheel lever (19) holds the coupling element (9a), possibly over the entire movement path during the closing process in the raised position Has section (19a) and / or that the coupling element (9a) has such a section held by the freewheel lever (19) in the raised position.

10. Motor vehicle door lock or the like. According to claim 8 or 9, characterized in that the decoupling lever (20) for lifting the coupling element (9a) actuates the freewheel lever (19) without lifting the pawl (3) or the Pawl lever (18) to operate.

11. Motor vehicle door lock or the like. According to one of claims 1 to 6, characterized in that the auxiliary opening drive (10) has an output element (13) which is movable in one direction of rotation and can be reset to its initial position and which moves when it is moved in the actuating direction first the coupling element (9a) and then the pawl (3) when moving further.

12. Motor vehicle door lock or the like. According to claim 11, characterized in that the output element (13) of the auxiliary opening drive (10) on the one hand a pawl lever (18), on the other hand a decoupling lever (20) for lifting the coupling element (9a) is assigned.

13. Motor vehicle door lock or the like according to claim 12, characterized in that the decoupling lever (20) has a coupling element (9a), possibly over the entire movement path during the closing process in the raised position section (20a) and / or that Coupling element (9a) has such a section (20b) held by the decoupling lever (20) in the raised position.

14. Motor vehicle door lock or the like. According to one of claims 1 to 13, characterized in that two power transmission elements (14a, 14b), in particular in the form of projecting pins, are arranged on the output element (13) of the auxiliary opening drive (10), each power transmission element (14a, 14b) actuating one of the levers (18; 20).