Motor vehicle lock for locking element of motor vehicle

Abstract

The invention relates to a motor vehicle lock comprising a latch (4) and a locking pawl (5), in which a release lever (11) is provided, which can be pivoted during an opening movement in a release direction from a starting position into a release position, in which the release lever (11) lifts the locking pawl (5) by means of the opening movement, and in which an electric opening drive (13) is provided, by means of which the locking pawl (5) can be unlocked by means of the release lever (11). The release lever (11) can be pivoted in order to carry out an opening movement in such a way that the opening drive (13) lifts the locking pawl (5) in an electromotive manner by means of the release lever (11), an actuating lever (15) is provided, which can be manually pivoted in an actuating stroke from a non-actuating position into an actuating position, and by means of which the release lever (11) in a starting position can be pivoted with the actuating stroke in order to carry out an opening movement, the actuating lever (15) manually lifts the locking pawl (5) by means of the release lever (11). According to the invention, the release lever (11) can be pivoted by means of the opening drive (13) from a starting position opposite the release direction into an idle stroke position, and when the release lever (11) is in the idle stroke position, the actuation stroke of the actuation lever (15) is an idle stroke relative to the release lever (11).

Description

[0001] This invention relates to a motor vehicle lock as described in the preamble of claim 1.

[0002] The vehicle locks discussed are used for all types of locking elements in motor vehicles. These specifically include locking elements such as side doors, rear doors, tailgates, tailgates, engine hoods, etc. These locking elements can, in principle, be designed as revolving doors or sliding doors.

[0003] The prior art upon which this invention is based (DE 10 2017 105 834 A1) relates to a vehicle lock having a latch and a locking pawl as locking elements. The latch can be brought to a closed position, in which it remains engaged with a closed portion and is secured by the locking pawl. The vehicle lock is designed as an electric lock and has an opening actuator with an electric drive motor that can lift the locking pawl, allowing the latch, which releases the closed portion, to be adjusted to its open position.

[0004] In the case of electric locks, the closed state achieved by the lever assembly in mechanical locks can be replaced by the on / off function of the electronic control assembly. This on / off function allows the electric drive motor used for electric opening to be operated or not operated. Therefore, increased operational comfort can be achieved.

[0005] Known vehicle locks (DE 10 2017 105 834 A1) also incorporate a mechanical redundancy for raising the locking pawl. Therefore, for example, if the power supply to the drive motor fails, the locking pawl can be raised via the door handle during a manual opening operation. For this purpose, the actuating rod of the vehicle lock is mechanically connected to the door handle, through which the locking pawl can be raised.

[0006] In this context, a challenge is that while providing mechanical redundancy for transitioning to the closed state, this redundancy also prevents manual lifting of the door handle, thus disabling the mechanical actuation again. Therefore, in the case of electric locks, the aforementioned lever assembly is also partially relied upon, enabling decoupling, for example, via switchable coupling elements. However, this, in turn, increases the mechanical complexity of the vehicle lock, even in the case of electric locks.

[0007] This invention is based on the design and improvement of known motor vehicle locks in such a way that mechanical redundancy is achieved with a simple structure.

[0008] The above problem is solved by the features of claim 1.

[0009] This invention is based on the fact that a release lever is provided, which is used both by an opening actuator for electric lifting and by an actuating lever for manual lifting of the locking pawl. Therefore, during the opening movement, the release lever can pivot from its initial position in the release direction.

[0010] A fundamental consideration is essential: opening the actuator can further be used to pivot the release lever out of the actuator's working range, thus preventing manual actuation of the actuator in a simple manner. Correspondingly, closed states such as "locked," "child safety lock," and / or "anti-theft" can also be achieved mechanically without the need for additional coupling elements.

[0011] Specifically, it is proposed that the release lever can be pivoted from the starting position to the unloaded stroke position by means of opening the actuator, and when the release lever is in the unloaded stroke position, the actuation stroke of the actuator lever is the unloaded stroke relative to the release lever.

[0012] Claim 2 provides a particularly simple implementation of the no-load stroke position, wherein the release element of the release lever is removed from the range of motion of the actuating lever.

[0013] The design schemes according to claims 3 and 4 are particularly preferred, as they are equipped with flywheel pawls that allow the actuating lever to return from its actuated position when the release lever is outside its no-load travel position. Therefore, even if manual and electric actuation overlap in time, jamming of the actuating lever can be reliably prevented.

[0014] By arranging the actuating rod and release rod according to claim 5, a compact structure for the vehicle lock can be achieved, while easily switching the no-load travel position.

[0015] Preferably, the starting position is determined particularly reliably by sensor detection according to claim 6, in which the lifting of the actuating rod relative to the locking pawl is effective.

[0016] The preferred design of the vehicle lock according to claims 7 to 11 relates to an operating mode of the release lever and the locking pawl. Among other things, in the dual-function configuration, in addition to raising the locking pawl, the release lever can also lock the locking pawl in the locked state.

[0017] Claim 12 also provides a control component that takes over the operation of opening the actuator. Preferably, when an emergency operation begins, such as in the event of a collision, the control component adjusts the release lever to a starting position to provide mechanical redundancy.

[0018] The invention will now be explained in more detail with reference to the accompanying drawings, which illustrate embodiments only. In the drawings,

[0019] Figure 1 shows a perspective view of a motor vehicle door with a) and b) the motor vehicle locks according to the present invention.

[0020] Figure 2 The vehicle lock is shown in a side view, where a), b) the release lever is in the initial position, c) the locking pawl is electrically raised, and d) the locking pawl is manually raised.

[0021] Figure 3 The vehicle lock is shown in a side view, where a) and b) the release lever is in the no-load travel position, and c) and d) when the actuation lever is reset, and

[0022] Figure 4 Side views a) and b) of another design for the actuating rod during reset are shown.

[0023] The embodiment shown in the figure, and preferred in this respect, relates to a motor vehicle lock 1 for a locking element 2 of a motor vehicle 3. Regarding the design of the locking element 2, reference can be made to the introductory description, in which, in this case, Figure 1 illustrates the operating mode of the motor vehicle lock 1 for a locking element 2 designed as a side door. However, all embodiments are equally applicable to all other types of locking elements of the motor vehicle 3. Figure 2 and Figure 3 The corresponding side views of the vehicle lock 1 in various states not yet explained are shown, wherein not all components of the vehicle lock 1 shown in FIG1 are shown.

[0024] The vehicle lock 1 is equipped with a latch 4 and a locking pawl 5. The latch 4 can be adjusted to at least one closed position, preferably the main closed position. Figure 2 a)), and if necessary, it can be adjusted to a pre-closed position to maintain engagement with the closed part 6, and can be adjusted to an open position ( Figure 1a) , 1b) The closing part 6 is used to release the locking element 2, preferably by pivoting about the geometric latch axis 7. The closing part 6 can be a closing bracket, a closing bolt, etc. As shown in Figure 1, when the latch 4 is in the open position, the closing part 6 can be inserted into the closing part seat 8 of the latch 4. Here, and preferably, the motor vehicle lock 1 is arranged on the locking element 2, while the closing part 6 is fixedly arranged on the body of the motor vehicle 3, wherein the opposite arrangement is conceivable.

[0025] The locking pawl 5, which interacts with the latch 4, can be brought into the locked state. Figure 2 a)) and the elevated state ( Figure 1a) , 1b) (2c) and (2d)). In the locked state, the locking pawl 5 prevents the latch 4, which is in the closed position, from adjusting in the opening direction. Figure 1aStarting from the open position, the latch 4 can be pivoted counterclockwise to reach the closed position, thereby locking the pawl 5 to reach the main latch 9 (main closed position) of the latch 4 through locking engagement; Figure 2 a)) or pre-lock 10 (pre-closed position; not shown). In the raised state, locking pawl 5 releases latch 4 in its opening direction, such that latch 4 can be pre-tensioned by a spring and / or moved to the open position by removing the closing portion 6.

[0026] A release lever 11 is provided, which is typically used to move the locking pawl 5 to the raised position. Figure 2 The release lever 11 can be seen in more detail in a), and is partially hidden in other figures. The release lever 11 can be released about the geometric release lever axis 12 from the starting position ( Figure 2 a), 2b), 3c), 3d) pivot to the release position ( Figure 2 c) and 2d)). The pivoting from the starting position to the release position occurs during the opening movement with a release direction, where the release direction corresponds to the pivoting direction of the release lever 11 during the opening movement. Figure 2 and Figure 3 In this configuration, the release direction corresponds to the counterclockwise pivoting of release lever 11 around release lever axis 12. The opening movement of release lever 11 causes release lever 11 to lift locking pawl 5.

[0027] In this configuration, the release lever 11 can transfer the locking pawl 5 to the raised state via direct mechanical contact. Here, and preferably, by means of at least one additional element, an indirect transfer of the locking pawl 5 by the release lever 11 is provided. The preferred operating mode of the indirect lifting shown in the accompanying drawings is further explained below.

[0028] An electrically operated opening actuator 13 is provided, through which a release lever 11 can be pivoted to perform an opening movement, such that the opening actuator 13 electrically lifts the locking pawl 5 by means of the release lever 11. For example, the door handle of the locking element 2 is equipped with a sensor, such as a button, thereby detecting the actuation of the door handle. The opening actuator 13 can then be actuated to achieve the electrically lifting of the locking pawl 5. The electrically lifting of the locking pawl 5 can be achieved from... Figure 2 As can be seen from the sequence of the illustrations in b) and 2c), in this case, the driving force of the drive motor 14 of the open drive 13 brings the release lever 11 to the release position.

[0029] Actuating lever 15 is used to couple to an operating element such as a door handle and to manually actuate the vehicle lock 1. In the assembled state of the vehicle lock 1, actuating lever 15 is mechanically connected, for example, via connecting elements (e.g., a Bolton cable or linkage) to the inner door handle 16, outer door handle 17, and / or emergency actuation element. Actuating force manually applied to the operating element can be transmitted to actuating lever 15, thereby performing an actuation stroke. During the actuation stroke, actuating lever 15 can be manually pivoted about the geometric actuating lever axis 18 from a non-actuated position to an actuated position. By means of actuating lever 15, release lever 11, located in the initial position, can pivot with the actuation stroke to perform an opening movement, such that actuating lever 15 manually lifts locking pawl 5 by means of release lever 11. The manual lifting of locking pawl 5 can be achieved from... Figure 2 As can be seen from the sequence of the illustrations in b) and 2d), in this case, manual pivoting of the actuating lever 15 brings the release lever 11 to the release position.

[0030] Therefore, both electric and manual lifting are achieved via the release lever 11, which is used to transmit the corresponding actuation force to the locking pawl 5.

[0031] The important point now is that the release lever 11 can be pivoted from the starting position to the unloaded stroke position by means of the open actuator 13, opposite to the release direction, and when the release lever 11 is in the unloaded stroke position, the actuation stroke of the actuator 15 is the unloaded stroke relative to the release lever 11.

[0032] In addition to electrically lifting the locking pawl 5 via the release lever 11, opening the drive 13 also performs the additional function of pivoting the release lever 11 to the no-load travel position. Figure 3 a) and 3b)) This can be achieved, in particular, by operating the drive motor 14 in the drive direction opposite to the electric lifting. In the no-load stroke position, the actuation stroke of the actuator 15 relative to the release lever 11 is the no-load stroke, so manual lifting via the actuator 15 is not possible. If the actuator 15 is used for internal actuation, the child safety lock and / or anti-theft closed state can be achieved through the no-load stroke position.

[0033] Of particular interest in the proposed solution is that, in order to disable the actuating rod 15, an additional lever assembly with coupling elements is not necessarily required. In any case, the opening actuator 13 for electric lifting is arranged here to adjust the release rod 11 in such a way that manual lifting via the actuating rod 15 is prevented.

[0034] Preferably, the release lever 11 has a release element 19 that protrudes into the range of motion of the actuating lever 15 in the initial position and can be engaged by means of the actuating lever 15 during the actuation stroke. Due to this engagement, force is transmitted from the actuating lever 15 to the release element 19 during the actuation stroke, causing the release lever 11 to pivot to the release position. Figure 2 d)).

[0035] In the no-load stroke position, the release element 19 is outside the range of motion. The release lever 11 pivots via the open actuator 13, causing the actuating lever 15 to pass through the release element 19 by the actuation stroke. Figure 3 Therefore, there is no force transmission from the actuating lever 15 to the releasing lever 11, which remains in the no-load stroke position under these circumstances.

[0036] Here, and preferably, the actuating lever 15 has an actuating element 20 that can contact the releasing element 19 when the releasing lever 11 is in the initial position, so as to pivot the releasing lever 11. However, in the no-load stroke position, the actuating element 20 travels through the releasing element 19 with the actuation stroke.

[0037] Particularly preferably, a flywheel pawl 21 is provided between the actuating lever 15 and the releasing lever 11, by means of which the releasing lever 11 can be pivoted in the releasing direction by means of the actuating lever 15. The flywheel pawl 21 can be pivotally assigned to either the releasing lever 11 or the actuating lever 15 via a flywheel 22.

[0038] like Figure 2 and Figure 3 As shown, the flywheel pawl 21 is preferably pivotally coupled to the release lever 11 and preferably forms a release element 19. During the actuation stroke, when the release lever 11 is in the initial position, the actuation lever 15 contacts the flywheel pawl 21. Figure 2 d)). Furthermore, the flywheel pawl 21 is coupled to the release lever 11 via the flywheel 22, which in Figure 2 As can be seen in more detail in a), during the actuation stroke, the release lever 11 is engaged by mechanical contact with the flywheel pawl 21.

[0039] When the release lever 11 is outside the no-load travel position, the flywheel pawl 21 allows the actuating lever 15 to return from the actuated position to the non-actuated position, which in Figure 3 Further examples are shown in c) and 3d). For instance, when there exists Figure 3 If, during the no-load stroke and when the actuator 15 is in the actuated position, the release lever 11 pivots from the no-load stroke position to the starting position by means of the open actuator 13, the following may occur: Figure 3 The state in c). If the actuating lever 15 is then released, for example by releasing the door handle, the actuating lever 15 can again occupy the non-actuated position without being jammed, because the flywheel 22 allows the flywheel pawl 21 to pivot in that direction via the actuating lever 15, as Figure 3 As shown in d). After passing through the actuator 15, it can be assumed again that... Figure 2 In state b), the flywheel pawl 21 falls backward in a spring-preloaded manner.

[0040] In the alternative design, a flywheel pawl 21 is coupled to the flywheel 22, allowing the flywheel 22 to pivot relative to the actuator rod 15, and forming a shape as follows: Figure 4 The actuating element 20 is shown. In this illustration, the actuation stroke corresponds to the clockwise pivoting of the actuating lever 15, whereby the release lever 11 is held by the flywheel pawl 21 (not shown). If the release lever 11 is outside the no-load stroke position, the actuating lever 15 can be driven by the pivoting of the flywheel pawl 21 via the flywheel 22 of the flywheel pawl 21. Figure 4 a)) Again from the actuation position ( Figure 4 b)) Return to the non-actuated position. In this case, the flywheel pawl 21 can also fall backward with spring preload.

[0041] Particularly preferably, the pivot plane of the release lever 11 is angled to the pivot plane of the actuating lever 15. The pivot plane of the release lever 11 is a plane perpendicular to the release lever axis 12, and the release lever 11 lies in this plane. The pivot plane of the actuating lever 15 is a plane perpendicular to the actuating lever axis 18, and the actuating lever 15 lies in this plane. The angle between the planes is preferably greater than 45°. In particular, vertical alignment of the planes is provided, as shown as an example in FIG1.

[0042] Furthermore, a position sensor for opening the actuator 13 is preferably provided here, which detects the initial position of the release lever 11. In this case, the position sensor can be assigned to the release lever 11 or an element coupled to the release lever 11. The position sensor is implemented, for example, by means of a Hall sensor, a micro switch, a reed switch, an angle sensor, etc., and reliable control of the initial position of the release lever 11 can be ensured by the operation of the actuator 13 based on the sensor.

[0043] The no-load travel position and / or release position can also be detected by sensors. However, here and preferably, a mechanical end stop is provided for the no-load travel position and / or release position, so that these positions can be detected, for example, by detecting the blocking current of the drive motor 14.

[0044] It is also conceivable to provide a mechanical locking element for the release lever 11, which releasably locks the release lever 11 in the starting position by means of the opening actuator 13 or the actuating lever 15. The term "releasable locking" means that the release lever 11 can be pulled out of the starting position against the locking force of the release lever 11 by means of the opening actuator 13 or the actuating lever 15. However, the locking force stabilizes the release lever 11 in the starting position. The locking element can be moved, for example, by means of a spring lip inserted into a locking groove.

[0045] Furthermore, a gear element 23 is preferably provided here, torsionally coupled to the gear 23 of the open actuator 13 by means of the release lever 11. The gear 23 preferably realizes a transmission ratio from the rotational output motion of the drive motor 14 to the output motion of the gear 23, which is provided here by means of the torsionally coupled connection with the release lever 11. The gear 23 may be single-stage or multi-stage. The gear 23 is preferably designed to be non-locking, such that the movement of the release lever 11 can be generated via the actuating lever 15 under the reverse drive of the drive motor 14.

[0046] In this configuration, and preferably, gear 23 is designed as a worm gear, wherein the worm 24 of the drive motor 14 assigned to gear 23 meshes with the teeth of gear element 25, wherein release lever 11 is torsionally coupled to gear element 25. To illustrate release lever 11 more fully, gear element 25... Figure 2 In diagram a), the figure is shown in dashed lines, while in the rest of the diagram it is shown in solid lines. Here, the anti-torsional connection is achieved via the common shaft 26 of the toothed element 25 and the release lever 11.

[0047] Furthermore, it is preferably provided here that the release lever 11 has a pressing profile 27, which is guided by the coupling assembly 28 assigned to the locking pawl 5 to lift the locking pawl 5 with the opening movement. In this case, the pressing profile 27 is designed to deviate from a concentric path relative to the axis 12 of the release lever. Figure 2 a)) causes the coupling component 28 to move on the guide during the opening motion. In this case, the coupling component 28 moves the locking pawl 5 to the raised state and can be directly or indirectly coupled to the locking pawl 5.

[0048] The flywheel profile 29 abuts the pressing profile 27 and guides the coupling assembly 28 when the locking pawl 5 is held in the locked position and pivots to the no-load stroke position. In this configuration, the flywheel profile 29 is preferably designed concentrically about the release lever axis 12. When the release lever 11 pivots to the no-load stroke position, the coupling assembly 28 preferably does not move via the guide, thus keeping the locking pawl 5 locked. In this configuration, the pressing profile 27 and the flywheel profile 29 are preferably formed by a groove in the release lever 11 into which the coupling assembly 28 protrudes. The extension of the groove with the flywheel profile 29 allows the release lever 11 to pivot to the no-load stroke position without moving the coupling assembly 28.

[0049] Furthermore, the release lever 11 is preferably provided here with a locking profile 30, which prevents the locking pawl 5 from moving to the raised state in the initial position, and releases the locking pawl 5 to the raised state with the opening movement. The release lever 11 locks the locking pawl 5 in the initial position. Figure 2a)) and here, and preferably locked in the no-load stroke position, so that the locking pawl 5 remains in the locked state. Locking can be achieved through indirect interaction, here through the coupling component 28, or through direct mechanical contact with the locking pawl 5.

[0050] In the preferred design shown, the locking profile 30 is formed by a groove in the release lever 11, which also forms the aforementioned pressing profile 27, particularly the flywheel profile 29. Figure 2 a)).

[0051] Furthermore, it is preferably provided here that the locking pawl 5 is pivotally supported on a pivotable locking pawl lever 31, which can be moved from the normal position of the locked state (Figs. 1, 2a), 2b), 3) to the deflected position by means of the release lever 11. Figure 2 b), 2c), wherein the locking pawl 5 can be moved to the raised position. The locking pawl lever 31 is designed to pivot about the geometric locking pawl lever axis 32.

[0052] Preferably, the locking pawl lever 31 and the locking pawl 5 form an elbow lever assembly. The pivotable support of the locking pawl 5 on the locking pawl lever 31 represents the first elbow joint 33 of the elbow joint assembly. The release lever 11 flexes the elbow lever assembly as the locking pawl 5 moves to the raised position during the opening movement.

[0053] The release lever 11, or the intermediate lever 34 which is adjusted by means of the release lever 11 and interacts here with the coupling assembly 28, preferably engages the elbow joint of the elbow lever assembly during the opening movement. In this case, the intermediate lever 34 may form a second elbow lever assembly together with the pivotally supported coupling lever 35, which flexes with the opening movement. The coupling lever 35 and the intermediate lever 34 are connected to each other via a second elbow joint 36, wherein the coupling assembly 28 is preferably arranged on the second elbow joint 36.

[0054] In addition, a control component 37 for operating the opening actuator 13, which is part of the vehicle lock 1, can be provided. The control component 37 is preferably integrated into the lock housing 38, which is only shown in FIG. 1. In principle, the control component 37 can perform control tasks related to operating the opening actuator 13.

[0055] Here, and preferably, closed states such as "unlocked," "central locking," "anti-theft," and "child safety lock" are stored in the memory of the control component 37. Based on the current closed state, it can be determined whether the drive motor 14 should be operated to perform an electrically opening operation upon receiving an actuation signal. These closed states may be primarily related to the electrically opening operation. When at least one predetermined closed state is entered, the control component 37 can operate the opening actuator 13 to bring the release lever 11 to the unloaded travel position. In particular, when entering the "anti-theft" and / or "child safety lock" closed state, manual internal actuation via the actuation lever 15 is prevented in this way. In particular, when entering the closed state "unlocked" and / or "child safety lock," the opening actuator 13 is operated by means of the control component 37 to adjust the release lever 11 from the unloaded travel position to the starting position, thereby allowing manual actuation via the actuation lever 15.

[0056] When an emergency operation begins, control component 37 can operate the open actuator 13 to adjust the release lever 11 from the no-load travel position to the starting position. The emergency operation is provided for situations where the power supply voltage may be insufficient to operate the open actuator 13. Examples of this include failures in the vehicle's electrical system, such as due to a large discharge of the central battery or a wiring fault in the vehicle's electrical system, and collisions involving the vehicle 3. Adjusting to the starting position provides mechanical redundancy. Particularly in the event of a collision, a time delay can be provided between the start of the emergency operation (e.g., by receiving a collision signal via control component 37) and adjustment to the starting position to prevent the locking pawl 5 from being lifted by the inertial force acting on the actuation lever 15 due to the collision.

[0057] Operations related to emergency procedures can be performed based on the energy supply from the energy storage device of the control component 37. For example, the control component 37 is equipped with at least one capacitor, such as at least one double-layer capacitor, and / or a main battery, thereby ensuring the energy supply for turning on the drive 13.

[0058] In addition to or alternative to the design described above, which features a control component 37 integrated into the vehicle lock 1, it is conceivable that the control component 37 is part of a separate control unit 39 for the vehicle lock 1. Examples of such a control unit 39 are valve control units and door control units, which may also implement other electronic functions in the locking element 2.

Claims

1. A motor vehicle lock, comprising a latch (4) and at least one locking pawl (5), wherein The latch (4) is adjustable to at least one closed position for retaining engagement with the closing part (6) and to an open position for releasing the closing part (6), wherein in the locked state the locking pawl (5) prevents the latch (4) in the closed position from being adjusted in its opening direction and in the lifted state releases it, wherein a release lever (11) is provided, which can be pivoted from a starting position to a release position during an opening movement in a release direction, wherein the release lever (11) lifts the locking pawl (5) by the opening movement, wherein an electric opening drive (13) is provided, by means of which the release lever (11) can be pivoted to perform an opening movement, so that the opening drive (13) electrically lifts the locking pawl (5) by means of the release lever (11), wherein an actuation lever (15) is provided, which can be manually pivoted from a non-actuation position to an actuation position in an actuation stroke and by means of which the release lever (11) in the starting position can be pivoted with the actuation stroke to perform an opening movement, so that the actuation lever (15) manually lifts the locking pawl (5) by means of the release lever (11), characterized in that the release lever (11) can be pivoted from the starting position to a no-load stroke position opposite the release direction by means of the opening drive (13) and the actuation stroke of the actuation lever (15) is a no-load stroke relative to the release lever (11) when the release lever (11) is in the no-load stroke position.

2. Motor vehicle lock according to claim 1, characterized in that The release lever (11) has a release element (19), which protrudes into the movement range of the actuation lever (15) in the starting position and can be entrained in the actuation stroke by means of the actuation lever (15) and is outside the movement range in the no-load stroke position.

3. Motor vehicle lock according to claim 1 or 2, characterized in that A freewheel pawl (21) is provided between the actuation lever (15) and the release lever (11), by means of which the release lever (11) can be pivoted in the release direction by means of the actuation lever (15) and which allows the actuation lever (15) to return from the actuation position to the non-actuation position when the release lever (11) is outside the no-load stroke position.

4. Motor vehicle lock according to claim 3, characterized in that The freewheel pawl (21) with a freewheel (22) is pivotably assigned to the release lever (11) or to the actuation lever (15).

5. Motor vehicle lock according to any of the preceding claims, characterized in that The pivot plane of the release lever (11) is oriented at an angle to the pivot plane of the actuation lever (15), preferably perpendicularly.

6. Motor vehicle lock according to any of the preceding claims, characterized in that A position sensor is provided for the opening drive (13), which detects the presence of the starting position of the release lever (11), and / or a mechanical latching element is provided for the release lever (11), by means of which the release lever (11) is releasably latched in the starting position by means of the opening drive (13) or the actuation lever (15).

7. Motor vehicle lock according to any of the preceding claims, characterized in that The release lever (11) is torsionally coupled to a gear element (23) of a gear wheel (23) of the opening drive (13), preferably the gear wheel (23) is designed as a worm wheel (24), wherein a worm (24) of a drive motor (14) assigned to the gear wheel (23) engages with a toothing of a tooth element (25), and the release lever (11) is torsionally coupled to the tooth element (25).

8. Motor vehicle lock according to any of the preceding claims, characterized in that The release lever (11) has a pressing contour (27) which guides a coupling assembly (28) assigned to the locking pawl (5) to lift the locking pawl (5) with an opening movement, and a freewheel contour (29) adjoins the pressing contour (27) which guides the coupling assembly (28) when pivoting into an unloaded stroke position when the locking pawl (5) remains in a locked state.

9. Motor vehicle lock according to any of the preceding claims, characterized in that The release lever (11) has a locking contour (30) which prevents the locking pawl (5) from being transferred into a lifted state in a starting position, and releases the locking pawl (5) to be transferred into a lifted state with an opening movement.

10. Motor vehicle lock according to any of the preceding claims, characterized in that The locking pawl (5) is pivotably supported on a pivotable locking pawl lever (31) which can be brought into a deflected position from a normal position in which the locking pawl (5) can be transferred into a locked state by means of the release lever (11), wherein the locking pawl (5) can be transferred into a lifted position.

11. Motor vehicle lock according to claim 10, characterized in that The locking pawl lever (31) and the locking pawl (5) form an elbow lever assembly, and the release lever (11) flexes the elbow lever assembly with an opening movement when the locking pawl (5) moves into a lifted state, preferably the release lever (11) or an intermediate lever (34) adjusted by means of the release lever (11) engages an elbow joint of the elbow lever assembly in an opening movement, further preferably the intermediate lever (34) forms a second elbow lever assembly which is flexed with an opening movement.

12. Motor vehicle lock according to any of the preceding claims, characterized in that A control assembly (37) is provided for actuating the opening drive (13), preferably the control assembly (37) actuates the opening drive (13) to adjust the release lever (11) from an unloaded stroke position into a starting position when an emergency operation is initiated, in particular based on an energy supply from an energy store of the control assembly (37).

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