EP2472038B1 - Motor vehicle door hinge - Google Patents

Description

The invention relates to a motor vehicle door hinge with a locking unit for locking a vehicle door with respect to a vehicle body, with a door console can be arranged on the door and a door console can be arranged on the vehicle body, via a hinge pin articulated on one of the door and column console and on the other is arranged rotationally fixed door and column console, the locking unit is fixed to the one of door bracket and column console and relative to the hinge pin between a blocking position and a release position adjustable locking element and an adjusting unit for adjusting the locking element between the blocking position and the Has release position.

Motor vehicle door hinges of the type mentioned are known in various configurations from the prior art. They allow the connection of a vehicle door to a vehicle body, wherein the integrated locking units serve to secure the vehicle door in predetermined angular positions, so that can be dispensed with separate lock. The locking units of generic motor vehicle door hinges generally have fixed locking angles in which the motor vehicle door is secured against undesired further pivoting.

Also, to a lesser extent, there are motor vehicle door hinges in which the locking unit allows stepless locking of the motor vehicle door, whereby it is possible to fix the motor vehicle door at any desired opening angle determined by the vehicle user. In addition to passive acting stepless detection units, d. H. Such locking units, which use the initiated by a user at the beginning of a pivotal movement of the door kinetic energy to cancel an existing, upon termination of a pivoting movement of the door automatically entering detent, there is also a group of motor vehicle door hinges with stepless lock in which the locking unit by a separate actuator is controlled.

In the motor vehicle door hinges with independent operating system for control However, the locking unit complex systems are usually used to build up or release the lock depending on the operating condition. However, such systems have the disadvantage that they require a large amount of space and are extremely expensive.

A generic motor vehicle door hinge is further from the DE 10 2010 011627 A1 known. To control the holding torque while a coaxial with the hinge pin arranged clamping element is provided, wherein the clamping force resulting from the opening width of the clamping element is set via a door-specific holding contour. The holding contour thus permanently defines the opening angle-dependent clamping force of the motor vehicle door hinge. An opening angle independent, dependent on the operating state of the motor vehicle door hinge variable determination of the clamping force is not possible.

The invention has for its object to provide a motor vehicle door hinge with a locking unit, which allows reliable locking of a vehicle door connected to the motor vehicle door hinge under changing conditions.

The invention solves the problem by a motor vehicle door hinge with the features of claim 1. Advantageous developments of the invention are specified in the dependent claims.

The motor vehicle door hinge according to the invention has a door bracket, which is connectable to the vehicle door, and connectable to the vehicle body pillar console, the door console and the pillar bracket - to ensure a pivoting of an associated with the motor vehicle door hinge motor vehicle door - are hingedly connected to each other via a hinge pin. The hinge pin is connected either rotationally fixed to the column console or the door bracket and hinged to the other console.

For locking a motor vehicle door connected to the motor vehicle door hinge, the locking unit of the motor vehicle door hinge according to the invention has a locking element, which is fixed to the bracket, which is pivotally connected to the hinge pin. A determination of the locking of the motor vehicle door hinge in positions between a maximum opening position of the motor vehicle door and its closed position, wherein the positions are determined by the pivot angle range of the door bracket relative to the column console, is effected by an actuation of the locking element which is adjustable relative to the hinge pin between a blocking position and a release position. In the blocking position, the locking element prevents or inhibits unwanted pivoting of the door due to its interaction with the hinge pin. The locking element acts directly with the hinge pin and inhibits at least the pivoting, so that an increased operating torque is required. In the release position, however, the locking element is in a position relative to the hinge pin, in which a pivoting of the motor vehicle door can be done with a low operating torque. To what extent in the release position and blocking position of the influence of the locking element is arbitrary, in principle, an adjustment can be provided in which the locking element between the door bracket completely defining and a completely out of engagement with the hinge pin position can be moved in the the locking element exerts no influence on the actuating torque. After the locking element can be arranged in any intermediate positions, an individual determination of the largely determined by the locking means actuating torque in a simple manner possible.

To adjust the locking element between the blocking position and the release position is an actuating unit, wherein the adjusting unit according to the invention in turn connected to this driving and detecting the operating state of the vehicle door control unit. The actuator thus serves to adjust the locking element in the desired - dependent on the operating state of the vehicle door - position. Essential operating conditions are, on the one hand, the determination of a pivoting movement of the vehicle door and the existing pivoting angle of the door console opposite the pillar console, which results in the opening angle of the door. In the case of a pivoting movement or an actuation of the door, starting from a locked position, the setting unit serves to position the locking element in such a way that a pivoting movement of the motor vehicle door can largely take place with a low actuating torque. In the case of a stoppage of the vehicle door, the adjusting unit serves to adjust the locking element in the direction of the blocking position, so as to prevent unintentional adjustment of the motor vehicle door to prevent from the set position. The adjusting unit is actuated via the control unit, which is also designed to detect the operating states of the motor vehicle door.

The use of the control unit according to the invention makes it possible to set the holding force generated by the locking unit regardless of the opening angle of the raftfahrzeugtür. Thus, identical opening angles can be assigned as many, depending solely on the operating state of the vehicle door holding forces.

The motor vehicle door hinge according to the invention is distinguished by its particularly high operating comfort, the use of an actuating unit connected to the locking element, which is controlled by a control unit which detects the operating states, ensuring reliable operation. In addition, the motor vehicle door hinge according to the invention can be adapted via the control unit to different manufacturer-specific specifications, wherein this can be done via a different type of control of the adjustment. By means of the control unit, customer-specific states of the locking unit can be assigned in a simple manner to the various operating states of a vehicle door connected to the motor vehicle door hinge.

The drive of the actuator is carried out according to the invention via the control unit, the specific embodiment is basically freely selectable. For example, the control unit can have a pneumatic and / or hydraulic drive unit. According to the invention, the control unit has a drive unit, in particular an electromechanical drive unit, which is connected to the setting unit such that an actuation of the drive unit is an adjustment of an actuating element engaged with the locking element of the setting unit between a position associated with the release position and a blocking position causes. The actuating element thus determines, depending on its position, the holding force caused by the locking element. The drive unit serves to drive the actuating unit and thus to effect an adjustment of the actuating element, so that this is adjusted at least between the positions which are associated with the release position and the blocking position of the locking element.

The arrangement of a drive unit to a control unit allows a particularly compact design, in particular, an electromechanical drive unit provides a cost effective and reliable way to drive the actuator.

According to the invention, it is provided that the drive unit has a drive motor, in particular an electric motor, which is in engagement with the actuating element. The use of an electric motor is particularly suitable for connection to the control element, after this only a coupling of the output shaft of the drive motor is required with the actuator. The adjusting element can be displaced particularly accurately and quickly by the drive motor, so that a particularly rapid adaptation of the motor vehicle door hinge to the respective operating states is possible.

In addition to the drive of the control unit, the control unit also serves to detect the operating state of the vehicle door. As already mentioned, the corresponding configuration of the control unit and the type of operating states to be detected are basically freely selectable. According to a particularly advantageous embodiment of the invention, however, the control unit has means for detecting the pivoting angle and / or a pivoting movement of the door bracket relative to the column console. The detection of the pivoting movement of the door panel directly opposite the column console, which is directly associated with the pivoting movement of a vehicle door, makes it possible to determine whether the door has been moved or has already completed a pivotal movement and the door has been arranged in the desired holding position. The detection of the pivot angle also makes it possible to accurately detect the door position, so that there is the possibility to provide pivoting angle-dependent positions of the locking element. In addition, the control unit formed in this way allows the detection of an intended pivoting of the door by means of a movement detection, the determination of the adjustment of the control unit to be carried out being basically freely selectable.

The detection of the swivel angle can be done in any way. According to a particularly advantageous embodiment of the invention, however, the means for detecting the pivoting angle is formed by a signal sensor, which is located in operative connection with a arranged on the hinge pin signal generator. According to this embodiment of the Invention, the pivot angle can be determined directly in the area of the arrester, so that a particularly compact design is possible. In addition, since the swivel angle detection takes place directly on the mutually pivoted parts, a very accurate detection of the actual swivel angle is possible.

The processing of the detected operating states, which is also accompanied by the activation of the drive unit driving the setting unit, can in principle be carried out at any point, for example by separate control devices. According to a particularly advantageous embodiment of the invention, however, the control unit controls the drive unit as a function of the pivoting angle and / or a pivoting movement of the door console relative to the column console, wherein at a standstill of the door console opposite the column console, the drive unit, the actuator in the direction of the blocking position associated position and displaced in a pivoting of the door bracket relative to the column console in the direction of the release position associated position. Thus, it allows a corresponding embodiment of the control unit to dispense with additional processing or control units. The control unit can interact directly with the drive unit and control it in accordance with a predetermined program.

As already described above, the activation of the drive unit selected by the control unit can be defined by suitable control programs in which the individual operating states are assigned to states of the drive unit that correspond to the customer's wishes. According to a development of the invention, it is provided that the control unit controls the drive unit in such a way that the actuating element is in a swivel angle range around the closed position of the vehicle door, in particular in the swivel angle range of up to 25 °, particularly preferably up to 15 °, starting from the closed position. is adjusted in the direction of the release position associated position. This embodiment of the invention makes it possible to close or open the door in any case in a particularly simple and comfortable manner, after in the area around the closed position of the door by the locking preferably no inhibition of movement by the locking element. In particular, when opening the door, this embodiment of the invention allows the detection of a pivoting movement, so that there is no premature blocking of the pivoting movement by activation of the actuating unit. Also a closing The door can be performed in a simple manner without increased effort, after the door in the area around the closed position is unloaded by the locking element pivotable.

According to a further embodiment of the invention it is further provided that the control unit controls the drive unit such that the actuator in the swivel angle range to the maximum opening position of the door, in particular in the swivel angle range of up to 10 °, preferably up to 5 ° before the maximum opening position, in Direction shifted to the blocking position assigned position. In a corresponding embodiment of the motor vehicle door hinge, the actuating torque is increased in the specified angular range by the activation of the actuating element and a displacement of the locking element in the direction of the blocking position. The door is thereby protected against displacement of the door at increased speed in the end stop. According to this embodiment of the invention, the locking unit acts as an end stop damper, wherein the control unit can be designed such that it increasingly adjusted with decreasing distance of the door from the end stop the actuating element in the direction of the blocking position.

According to the invention, the locking element is formed by a coaxial with the hinge pin arranged Umschlingungsklammer with a longitudinal axis of the hinge pin extending slot, wherein the opening width of the slot for adjusting the looping between the release position and the blocking position is adjustable by the actuator. The wrap clamp engages the hinge pin in a predetermined portion of the hinge pin. Through the slot provided Design of the wrap the radius of the clip can be adjusted by reducing or enlarging the slot relative to the hinge pin, with increasing reduction of the slot width increased contact pressure of the wrap is achieved at the hinge pin section until the wrap is in the blocking position in which a Swiveling movement of the door bracket relative to the column console is completely inhibited due to the existing between the belt and the hinge pin friction.

An enlargement of the opening width of the slot, however, leads to a reduction of the contact pressure of the belt clip on the hinge pin, so that the required for pivoting the door bracket relative to the column console actuating torque is reduced with increasing opening width, to the release position between the hinge pin and the looping substantially no Friction prevails more, so that the locking element then exerts no influence on the pivoting movement.

Depending on the adjustment of the locking element, the friction to be achieved can be defined in a particularly simple and cost-effective manner via the wrap angle, which also results in the opening width of the slot, so that the motor vehicle door hinge designed according to the above development can be produced particularly cost-effectively. In addition, a simple determination of the actuating element can also be achieved via the choice of material and the surface quality and the resulting friction pairing between the hinge pin and the looping clip.

The embodiment of the looping clip is basically freely selectable, as already explained above, wherein the surface provided for friction with the hinge pin can be adjusted via the looping angle and along its length. The wrap-around bracket has one on the Hinge pin arranged clamping portion and two such adjoining areas of the slot on the clamping portion subsequent clamping leg, that a change in the distance of the facing inner sides of the clamping legs causes a change in the opening width.

The adjoining the coaxial with the hinge pin clamping portion adjoining clamping leg, which extend substantially radially to this, allow it in the case of an attacking at a distance from the hinge pin actuator and then resulting leverage, the opening width of the slot with a reduced effort by adjusting the Distance of the clamping legs to each other to change.

An actuating unit can thus be used, which only requires a smaller amount of force to actuate the locking element than is the case with an immediate connection in the region of the hinge pin. The operating torque defining diameter of the clamping portion of the looping clamp is determined by the change in the distance of the clamping legs to each other, with increasing distance from the clamping portion even small changes in the distance of the clamping legs to each other have a significant change in the operating torque result.

It is advantageous for the function of the motor vehicle door hinge according to the invention that the locking element is fixedly arranged on the console, which is adjustable relative to the hinge pin. Thus, if according to a preferred embodiment of the motor vehicle door hinge, the hinge pin is rotationally connected to the column console, the locking element is rotationally arranged on the door bracket, so that a pivoting movement of the door bracket directly an adjustment of the locking member relative to the hinge pin has the consequence over the friction with the Hinge pin determines the required to pivot the door actuating torque.

The corresponding arrangement of the locking element, which is designed as a wrap-around, is basically arbitrary. According to a particularly advantageous embodiment of the invention, however, in the embodiment of the locking element as a loop clamp, the first clamping leg with its outer side with the setting unit and the second clamping leg with its outer side with an inner wall a housing of the arrester unit is engaged.

According to this embodiment of the invention, the looping clip is supported by the outer sides of the two clamping legs on the inner wall of the housing or on the setting unit, which in turn is connected to the bracket pivotally connected to the hinge pin, preferably the door bracket. A rotation of the wrap is excluded by this embodiment of the invention, after the second clamping leg is fixed in its position by the inner wall and the first clamping leg on the setting unit. The adjusting unit makes it possible to adjust the first clamping leg relative to the second clamping leg, whereby, depending on the thereby adjusting opening width of the looping clamp, the moment required for actuation is determined. A further and complicated and cost-increasing attachment of the looping clip is not required according to this embodiment of the invention, which can also be mounted in a simple manner beyond.

As already shown, takes place in the embodiment of the locking element as wrap loop with two clamping legs, of which the first rests with its outer side with the actuator and the second with its outer side on an inner wall of a housing, a determination of the actuating torque on the setting unit, through the the distance between the first and second clamping legs is determined. Thus, the individual positions of the actuator unit unique positions of the clamping legs are assigned to each other.

In order to achieve the possibility of changing the actuating torque or its course at the same setting unit, according to a particularly advantageous embodiment of the invention provides that the outside of the second clamping leg rests against a screwed into the housing and protruding from the inner wall of the housing adjusting screw. According to this embodiment of the invention, the outer side of the second clamping leg is not directly adjacent to a housing inner wall, but is supported on a projecting into the housing from adjusting screw. The distance of the outer side of the second clamping leg from the inner wall of the housing can thus be determined via the screw-in depth of the adjusting screw, so that identical positions of the actuating unit are assigned different opening widths of the slot between the clamping legs can.

Thus, this embodiment of the invention allows the determination of different operating torque curves with otherwise identical construction of the motor vehicle door hinge. Furthermore, the use of a screw provides the ability to subsequently correct the moment of actuation torque, to adapt to changing requirements or to meet special customer requirements. The adjusting screw is preferably accessible from an outer side of the housing, so that a comfortable adjustability is given.

The configuration of the setting unit such that it cooperates with the locking element, preferably the first clamping leg in the direction of the second clamping leg can be adjusted in distance, is also basically freely selectable. According to a particularly advantageous embodiment of the invention, however, the outer side of the first clamping leg bears against a variable contact surface of the adjusting element of the adjusting unit that is variable with respect to the second clamping leg.

According to this embodiment of the invention is in the area between the release position and the blocking position a permanent contact surface of a contact surface of the actuating element on the outside of the first clamping leg. The distance between the voltage applied to the outside of the first clamping leg contact surface relative to the second clamping leg is modifiable via actuation of the adjusting unit, which inevitably results in a change in the distance between the two clamping legs to each other, preferably achieved by the adjusting element displacement of the clamping legs to each other in elastic region of the looping takes place, so that without further aids a permanent contact surface is ensured on the outside of the first clamping leg.

In this case, the outside of the first clamping leg particularly preferably has a web resting against the contact surface, as a result of which a particularly reliable adjustment of the first clamping leg relative to the second clamping leg can be realized. The web can be formed integrally with the first clamping leg, but also be formed by a connected to the first clamping leg component, wherein the web also may be formed by deviating from the material of the belt clip materials, which are adapted to the friction load.

According to the invention, the adjusting element is formed by a camshaft arranged on an eccentric cam, which is designed such that a rotation of the preferably parallel to the hinge pin extending camshaft causes a change in the distance of the contact surface of the eccentric cam to the second clamping leg.

The eccentric cam, which extends particularly advantageously in the axial direction of the hinge pin as far as possible over the length of the first clamping leg, has a contact surface whose distance from the camshaft changes in the circumferential direction to achieve an adjustment of the first clamping leg in dependence of the rotation of the camshaft. By means of this embodiment of the invention, the distance between the first and second clamping legs can be determined by a simple rotation of the camshaft carrying the eccentric cam. The configuration of the eccentric cam determines depending on the angle of rotation of the camshaft, the specified operating torque, wherein the contour of the contact surface of the eccentric cam further defines the course of the actuating torque between the blocking position and the release position.

Fig. 1

in einer perspektivischen Darstellung eine Skizze eines Kraftfahrzeugtürscharniers;

Fig. 2

in einer perspektivischen Darstellung eine Prinzipskizze des Kraftfahrzeugtürscharniers von Fig. 1 mit geöffneter Steuerungseinheit;

Fig. 3

in einer perspektivischen Darstellung eine Skizze des Kraftfahrzeugtürscharniers von Fig. 1 ohne Steuerungseinheit;

Fig. 4

in einer perspektivischen Darstellung eine Prinzipskizze einer Feststelleinheit und einer Steuerungseinheit des Kraftfahrzeugtürscharniers von Fig. 1;

Fig. 5

in einer alternativen perspektivischen Darstellung eine Prinzipskizze der Feststelleinheit und Steuerungseinheit von Fig. 4 und

Fig. 6

in einer perspektivischen Darstellung einer Prinzipskizze der Feststelleinheit des Kraftfahrzeugtürscharniers von Fig. 4.

An embodiment of the invention will be explained below with reference to the drawings. In the drawings show:

Fig. 1

in a perspective view of a sketch of a motor vehicle door hinge;

Fig. 2

in a perspective view of a schematic diagram of the motor vehicle door hinge of Fig. 1 with open control unit;

Fig. 3

in a perspective view of a sketch of the motor vehicle door hinge of Fig. 1 without control unit;

Fig. 4

in a perspective view of a schematic diagram of a locking unit and a control unit of the motor vehicle door hinge of Fig. 1 ;

Fig. 5

in an alternative perspective view of a schematic diagram of the locking unit and control unit of Fig. 4 and

Fig. 6

in a perspective view of a schematic diagram of the locking unit of the motor vehicle door hinge of Fig. 4 ,

This in Fig. 1 to 5 shown motor vehicle door hinge 33 has a door bracket 2 and a pillar bracket 1, which are hingedly connected to each other via a hinge pin 3. For this purpose, the hinge pin 3 is arranged against rotation with a mounting portion 24 in a receiving opening of a boom 5 of the column bracket 1, wherein the mounting portion 24 may be polygonal to prevent rotation of the hinge pin 3, for example., And the receiving opening in the boom 5 is formed accordingly.

The door bracket 2, however, is hinged relative to the hinge pin 3. The articulated connection takes place via a pivotal mounting of the hinge pin 3 to a housing base bushing 14 and a housing cover sleeve 18 of a rotationally fixed to the door bracket 2 connected housing 6 a locking unit 4. The housing base bushing 14 and the housing cover sleeve 18 are formed on the housing bottom 11 and housing cover 10 which serve to close the housing 6 in the axial direction of the hinge pin 3.

Due to the articulated receiving the hinge pin 3 in the bearing bushes 14, 18, the door bracket 2 can be pivoted relative to the hinge pin 3, wherein the locking unit 4 is mitverschwenkt relative to the hinge pin 3. The pivotal movement of the door bracket 2 relative to the column console 1 in the opening direction is limited by an end stop, which is formed by an attached to the housing 6 boom 8 and arranged on the pillar bracket 1 stop 7, which abut each other in the maximum opening position. In order to ensure a basically good pivoting of the door bracket 2 relative to the column console 1, a sliding washer 13 is arranged between the housing base bushing 14 and a the insertion depth of the hinge pin 3 in the receiving opening on the boom 5 limiting flange 12.

Within the housing 6 of the locking unit 4 designed as a locking element wrap 17 is arranged with a clamping portion 21 coaxial with the hinge pin 3, wherein the clamping portion 21, the hinge pin 3, however, does not completely surround. Therefore, the clamping portion 21 has a slot extending in the axial direction of the hinge pin 3, the opening width of which can be varied by the distance between two clamping legs 22, 23 adjoining the clamping portion 21 in the region of the slot. By fixing the distance of the clamping legs 22, 23 to each other, the pressing force can be determined, with which the clamping portion 21 of the looping clip 17 acts on the hinge pin 3.

To set the distance of the clamping legs 22, 23 to each other, it is initially provided that the second clamping leg 23 is supported with its outer side relative to the housing 6. The support takes place on a screwed into the housing 6 screw 16, which protrudes from the inside of the housing 6, so that the outside of the second clamping leg 23 rests against the adjusting screw 16. After the second clamping leg 23 thus can not yield to the first clamping leg 22, a change in the slot width by a change in the distance between the clamping legs 22, 23 take place in that the first clamping leg 22 is adjusted relative to the second clamping leg 23.

To adjust the first clamping leg 22, an actuating unit 29 is used, which has an eccentric cam 15 designed as an actuating element 15 which is arranged on a rotatably mounted relative to the housing 6 camshaft 9. The bearing of the camshaft 9 takes place via bearing bushes 34, which are arranged in suitable openings in the housing bottom 11 and in the housing cover 10. The eccentric cam 15 rests with a contact surface 36 against a web 35 arranged on the outside of the first clamping leg 22. After a change in the eccentric cam 15, the distance of the contact surface 36 - which has a varying distance to the camshaft 9 in the circumferential direction - relative to the second clamping leg 23, resulting from a rotation of the camshaft 9, a displacement of the first clamping leg 22 relative to the As a result, the distance between the clamping legs 22, 23 to each other, so that by the clamping portion 21 on the Hinge pin 3 acting clamping force is adjustable.

To adjust the eccentric cam 15 of the actuating unit 29 is on the end of the camshaft 9, which protrudes through the housing cover 10 from the housing 6, a camshaft 25 is arranged, which is in operative connection with an output shaft 31 of an electric motor 28.

The electric motor 28 is part of a control unit 27, which also has a signal sensor 30. The control unit 27 has a control unit housing 32, which is fixed to the housing 6 of the locking unit 4. The signal sensor 30 is thereby in operative connection with a signal transmitter 26 arranged on the end of the hinge pin 3 and makes it possible to detect the swivel angle of the door bracket 2 relative to the column console 1 and to determine a successful pivoting movement.

Depending on the resulting from these data operating state of a vehicle door not shown here, the control unit 27 controls the electric motor 28, which causes an adjustment of the actuating element 15 of the actuating unit 29 via the output shaft 31. By a rotation of the eccentric cam 15 from the in the Fig. 4-6 shown position, which is associated with a release position of the wrap 17 in a blocking position of the wrap 17 associated position, wherein the eccentric cam 15 - based on the graphic representation - is rotated clockwise, increases the required for pivoting a motor vehicle door, not shown actuating torque because the pressure acting on the hinge pin 3 is increased by the clamping portion 21.

For arranging the motor vehicle hinge 33, the door console 2 and the column console 1 have suitable openings 20 for receiving fastening means, for example rivets 19.

Claims (12)

1. Motor vehicle door hinge having an immobilising unit (4) for arresting a vehicle door in relation to a vehicle body, said hinge having a door bracket (2), which may be arranged on the vehicle door, and a pillar bracket (1), which may be arranged on the vehicle body, which brackets are connected to one another in an articulated manner via a hinge pin (3) which is arranged in an articulated manner on either the door bracket (2) or pillar bracket (1), and in a torsion-proof manner on the other of the door bracket (2) or pillar bracket (1); wherein the immobilising unit (4) has an arresting element, which is fixed to either the door bracket (2) or pillar bracket (1) and is adjustable, in relation to the hinge pin (3), between a clamping location and a releasing position, and also an actuating unit (29) for adjusting said arresting element between the clamping location and the releasing position; and wherein the arresting element is constituted by a wrap-around clamp (17) which is arranged coaxially in relation to the hinge pin (3) and has a slit which extends in the direction of the longitudinal axis of said hinge pin (3) and the width of opening of which can be set by the actuating unit (29) for the purpose of adjusting the wrap-around clamp (17) between the releasing position and the clamping location, and the wrap-around clamp (17) has a gripping section (21) arranged on the hinge pin (3) and also two gripping legs (22, 23) which adjoin said gripping section (21) on opposing regions of the slit in such a way that a change in the distance between the mutually facing inner sides of the first and second gripping legs , (22, 23) brings about a change in the width of opening,
   characterised in that
   the actuating unit (29) is connected to a control unit (27) which drives it and which also detects the operating condition of the vehicle door; wherein said control unit (27) has a driving unit (28) which is connected to the actuating unit (29) in such a way that actuation of said driving unit (28) brings about an adjustment of an actuating element (15) belonging to the actuating unit (29), which actuating element is in engagement with the arresting element (17), between a position associated with the releasing position and a position associated with the clamping location; wherein the driving unit has a driving motor (28) which is in engagement with the actuating element (15); and wherein said actuating element is constituted by an eccentric cam (15) which is arranged on a camshaft (9) and which is constructed in such a way that twisting of the camshaft (9) brings about a change in the distance of the contact face (36) of the eccentric cam (15) from the second gripping leg (23).
2. Motor vehicle door hinge according to Claim 1, characterised in that the driving motor (28) is an electric motor.
3. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the control unit (27) has means (30) for detecting the pivoting angle and/or a pivoting movement of the door bracket (2) in relation to the pillar bracket (1).
4. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the means for detecting the pivoting angle is constituted by a signal sensor (30) which is in operative connection with a signal transmitter (26) arranged on the hinge pin (3).
5. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the control unit (27) controls the driving unit (28) in dependence upon the pivoting angle and/or a pivoting movement of the door bracket (2) in relation to the pillar bracket (1), the driving unit (28) displacing the actuating element (15) towards the position associated with the clamping location when the door bracket (2) is at a standstill in relation to the pillar bracket (1), and towards the position associated with the releasing position when the door bracket (2) pivots in relation to the pillar bracket (1).
6. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the control unit (27) controls the driving unit (28) in such a way that the actuating element (15) is located, within a pivoting-angle range about the closing location of the motor vehicle door hinge (33), in particular within the pivoting-angle range of up to 25°, in a particularly preferred manner up to 15°, starting from the closing location, in the position associated with the releasing position.
7. Motor vehicle door hinge according to one of the preceding claims, characterised in that the control unit (27) controls the driving unit (28) in such a way that the actuating element (15) is displaced, within the pivoting-angle range about the maximum opening location of the motor vehicle door hinge (33), in particular within the pivoting-angle range of up to 10°, preferably up to 5°, before the maximum opening location, towards the position associated with the clamping location.
8. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the first gripping leg (22) is in engagement, via its outer side, with the actuating unit (29), and the second gripping leg is in engagement, via its outer side, with an inner wall of a housing (6) belonging to the immobilising device.
9. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the outer side of the second gripping leg (23) abuts against a setscrew (16) which can be screwed into the housing (6) and protrudes from the inner wall of said housing (6).
10. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the outer side of the first gripping leg (22) abuts against a contact face (36) of the actuating element (15) of the actuating unit (29), which contact face is variable in its distance in relation to the second gripping leg (23).
11. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the contact face (36) abuts against a web (35) which is arranged on the outer side of the first gripping leg (22).
12. Motor vehicle door hinge according to one or more of the preceding claims, characterised in that the camshaft (9) runs parallel to the hinge pin (3).

Images