DE19942481A1 - Door handle arrangement for a motor vehicle door locking system with passive entry function - Google Patents

Abstract

The arrangement has a door handle bearing in two parts (10a, 10b), a pivotable, adjustable handle (6) that can be pivoted from a rest position into an actuating position and a switch (11) on the handle or bearing for detecting operation of the handle from its rest position. Movement of the handle causes displacement of an outer actuating lever (12) in a lock mechanism or an electric function to open the door. The movement of the outer handle is transferred to the outer actuating lever or opening switch with a delay.

Description

The invention relates to a door handle arrangement for a motor vehicle door Locking system with passive entry function with the features of the Oberbe handles of claim 1.

Conventional electromechanical motor vehicle door closers are known systems with radio remote control, but without passive entry function. At these classic motor vehicle door locking systems are operated by the operator a push button on the remote control module. This will make the Control electronics activate and immediately go through their reaction phase. Due to the distance of the operator when pressing the button of the Remote control module, the operator reaches the outside door handle on the Motor vehicle door with such a long time delay that the reaction phase of the control electronics and the motor vehicle lock has been unlocked. The operator opens by pulling on Outside door handle the motor vehicle door, the motor vehicle lock either mechanically opens, i.e. the pawl by the movement of the door outside handle is lifted, or opens electromechanically or pneumatically, whereby from the outside door handle a control signal to the opening drive to the off the pawl is released.

A motor vehicle door locking system with passive entry function, also "elek called tronic key "differs from that previously explained classic motor vehicle door locking system in that on the remote control dul no handling, so no key press has to be made, to unlock the motor vehicle lock when approaching the motor vehicle apply. Rather, all of this happens automatically when the operator approaches person to the motor vehicle.  

A motor vehicle door locking system with a passive entry function is required for the control electronics have a certain reaction phase, which results from an on Run interval to activate the system when the remote control module approaches four, an authorization check interval, based on the operator the coding of the between remote control module and control electronics exchanged signals to check their eligibility, and finally that actual interval of action in which the action takes place, in particular the Unlocking the motor vehicle lock is carried out. (Even when locking the motor vehicle door locking system, an ent speaking reaction phase needed. But this is less critical because it the operator hardly notices.)

The duration of the reaction phase of approx. 150 ms is compared to that of konven tional motor vehicle door locking systems perceived as long if one the start-up interval only starts when the outside door handle is actuated. Such one Motor vehicle door locking system with a passive entry function is, for example known from DE-A-197 52 974. From a door handle arrangement for one such a motor vehicle door locking system is based on the teaching of the invention.

In the door handle arrangement of such a motor vehicle door locking system, he Of course, pulling the outer door handle follows when the reacti phase of the control electronics has not yet been completed. Benö the control electronics for running through the start-up interval and Authorization check interval and finally the action interval in which the motor vehicle lock is unlocked, not substantially as 100 ms, the path of movement of the outer door handle is sufficient to move on its last ten pieces then lifting the pawl and opening it to effect the motor vehicle door. Is the reaction phase of the control electro nik longer, however, an operator must use the door handle a second time pull to open the vehicle door. That is called felt annoying because it is understood as a "malfunction".

Another approach is the start-up interval of the control electronics not to start only when the outer door handle is actuated, but already an operator's hand approaching the outside door handle  to start the start-up interval. It is known for this at the Türau ßgriff provide a proximity sensor (DE-A-197 52 974; DE-A -196 17 038) by which an operator's hand approaches already about 100 to 150 ms before the outside door handle is touched by the Hand grasped. The start of the start-up interval of the control electronics, so the "waking up" of the control electronics takes place so far before the actual one Chen pulling the outer door handle that the startup interval and usually also that Authorization check interval is already complete when the door is outside gripped by the operator's hand is actually moved.

The use of proximity sensors in motor vehicle door locking systems The type in question presents various difficulties. On the one hand, the proximity sensors have a comparatively high one Quiescent current, on the other hand, it is difficult to have a stable, clear response set threshold. External influences such as rain, snow, dust and Dirt change the measurement, especially with capacitive proximity sensors very much. Finally, with proximity sensors, the problem is through they cannot be overlooked emitted electromagnetic interference radiation. Therefore, despite the difficulties outlined above, have strength Vehicle door locking systems with passive entry function, in which only one Operation of the outer door handle by the hand of an operator Start-up interval of the control electronics starts, considerable advantages.

The invention is based on the problem of a door handle arrangement for to specify a motor vehicle door locking system with a passive entry function, which offers the prerequisites that a longer reaction phase of the Control electronics not perceived by the operator as disturbing becomes.

The problem outlined above is with a door handle assembly Features of the preamble of claim 1 by the features of the kenn drawing part of claim 1 solved. A second, subordinate Lö solution is the subject of claim 5.

In the inventive solution of claim 1, the ma ximal adjustment path of the outer door handle on the door handle arrangement as far as ver  increases that the outer operating lever of the motor vehicle door lock only is operated with a corresponding delay. The same applies to one Opening switch if the motor vehicle door lock locking system can be opened by a motor. This will also make a longer reak tion phase of, for example, 150 ms for an operator concealed.

In the secondary solution of claim 5, the Bewe speed of the outer door handle on the door handle arrangement redu graces. This means that it takes longer for the outside door handle to reach the maximum ver Stellweg has traveled, but as such the maximum Adjustment path in door handle arrangements known from the prior art can correspond. This also makes it clear to the operator Extendable movement time for the outside door handle extended, which then just the Ka A longer reaction phase is also permitted.

Preferred refinements and developments of the teaching of Pa Claims 1 are the subject of claims 2 to 4, the teaching of ne subordinate claim 5 Subject of claims 6 to 9.

In the following the invention is based on a merely preferred embodiment drawing illustrating examples. In the drawing shows

Fig. 1 is a schematic and perspective view of a motor vehicle having a door locking system of the type in question,

Fig. 2 shows a door handle assembly for a motor vehicle Türschließsy stem of FIG. 1,

Fig. 3 shows a first embodiment of a door handle assembly according to the invention, the outside door handle in the rest position,

Fig. 4 in Fig. 3 a representation corresponding to a door handle assembly with the outside door handle in an intermediate position,

Fig. 5 corresponding to FIGS. 3 illustration, the Türgriffanord voltage with the external door handle after covering the maximum displacement path in its actuating position,

Fig. 6 shows another embodiment of a door handle arrangement according to the invention in a Fig. 3 corresponding representation, the door outer handle so in the rest position.

The motor vehicle 1 shown schematically in FIG. 1 has a motor vehicle door locking system in which the various motor vehicle locks 2 for motor vehicle doors and motor vehicle flaps are indicated schematically with their installation positions. Each motor vehicle lock 2 is moto ric, preferably electric motor, unlockable and lockable. From execution as an electric lock, as shown here, the motor vehicle lock 2 also has the possibility of a motorized opening, that is, from lifting the pawl by means of an opening drive. In this case, the unlocking and locking can only be done in terms of circuitry. Another variant is also to equip the motor vehicle locks 2 with an auxiliary locking drive, which can be identical to or separate from the opening drive. In addition, reference may be made to the state of the art (DE-A-196 29 709 etc.)

Indicated in the motor vehicle door locking system are control electronics 3 , which are indicated here as central control electronics, but which can also be assigned decentrally to each of the motor vehicle locks 2 . It is provided that a hood lock 4 to be operated by means of a key for the motorized hood of the motor vehicle and a remote control module 5 which is designed as a passive entry chip card. The control electronics 3 works overall with a passive entry function, ie with an "electronic key". In this respect, too, reference may be made to the prior art mentioned above.

On the motor vehicle body, he is recognizable on the respective motor vehicle door, an outside door handle 6 and on the driver's door a lock cylinder 7 for actuation with a mechanical key 8 , such actuation being carried out in an emergency (emergency unlocking and possibly emergency opening).

As has already been explained for the prior art forming the starting point, it must be taken into account in this motor vehicle door locking system that the control electronics 3 require a reaction phase with a start-up interval, authorization check interval and action interval, in particular for unlocking the motor vehicle lock 2 .

In the prior art it has already been realized that the start-up interval of the control electronics 3 is started by the hand of an operator touching the outer door handle 6 . "Operation" of the outer door handle 6 thus means real mechanical operation or already touch. Fig. 2 shows a typi cal door handle assembly 9 of a motor vehicle door locking system of the type in question with the outer door handle 6 and the lock cylinder 7th

Fig. 2 in conjunction with Fig. 3 now shows a first preferred embodiment example of a door handle assembly 9 according to the invention for a motor vehicle door locking system with passive entry function. First to recognize a fixedly attached to the motor vehicle door door handle bearing 10, which consists in the embodiment shown of two bearing parts, namely a bearing portion 10 a, which also includes the locking cylinder 7, and a bearing part 10 b, which contains the swivel bearing of the outer handle. 6 The outside door handle 6 is adjustable on the door handle bearing 10 , pivotally mounted in the illustrated and preferred embodiment. The pivot bearing can be realized not only about a vertical axis as in the illustrated embodiment, but also about a horizontal axis as in the prior art according to DE-A-197 52 974. Other adjustment constructions for the outer door handle 6 , for example a push handle or a slide lever, are also conceivable.

The prerequisite is that the outer door handle 6 is adjustable to the door handle bearing 10 from a rest position by a maximum adjustment distance into an actuation position. On the outside door handle 6 or on the door handle bearing 10, in the illustrated embodiment on the bearing part 10 a of the door handle bearing 10, a switch 11 is arranged, which detects an actuation of the outside door handle 6 from the rest position.

The switch 11 is an electromechanical African microswitch in the illustrated embodiment, any other form of a switch, for example also contactlessly operated switches such as Hall sensors can be used here.

In the illustrated embodiment, it is provided that the adjustment of the outer door handle 6 is an adjustment of an outer operating lever 12 of a lock mechanism for opening the motor vehicle door. For this purpose, the outer door handle 6 is assigned a coupling element 13 which grips the outer actuating lever 12 of the lock mechanism. For such constructions, reference may be made to the state of the art.

The coupling element 13 does not have to have the hook shape shown in FIG. 3, it can also have the shape of a rotary transmission element or the like. Ver various solutions for the mechanical coupling of the outer door handle 6 to the lock mechanism are known in the prior art and can also be adopted in the present case.

Another, explained below in connection with the embodiment of FIG. 6 variant is to trigger an electrical function for opening the motor vehicle door by adjusting the outside door handle 6 . In this case, pure electric lock, the adjustment movement of the door outer handle 6 is only detected by means of switches and implemented in electric drive movements, for example an opening drive.

Fig. 3 to 5 show now that according to the invention the adjusting movement of the outside door handle 6 is transmitted with a delay on the outside actuating lever 12. It can be seen that this delay in transmission is realized in that a lost motion connection 15 between the door outer handle 6 and the outer actuating lever 12 is realized constructively. A lost motion connection 15 can be realized, for example, by an elongated hole arrangement, a toggle lever arrangement or the like. A lost motion connection 15, as in the exemplary embodiment shown, is particularly compact when it is designed as a telescopic connection. The outer actuating lever 12 associated telescopic member 16 of the lost motion connection 15 does not move here until at least one further telescopic member 17 has covered a maximum adjustment distance. It is recommended that the lost motion connection 15 , in particular the telescopic connection, is prestressed into the rest position with a spring element 18 .

FIGS. 3 to 5 show the sequence for the actuation of a door handle assembly of the type described here 9:

Fig. 3 shows the outside door handle 6 in its rest position on the door handle bearing 10. Is now drawn on the outside door handle 6, so the transition results in FIG. 4. It is seen that initially the micro-switch 11 on the door handle bearing 10, NaEM Lich at its bearing portion 10 a, fes immediately after actuation of the Türaußengrif 6 is operated. The switch 11 starts the reaction phase of the control electronics 3 . While the outer door handle 6 is being moved, the start-up interval, the authorization check interval and finally the action interval - unlocking the motor vehicle lock 2 - takes place in the control electronics 3 . During the movement of the outer door handle 6 over a first part of its adjustment path, only the telescopic member 17 on the outer door handle 6 itself is moved, the spring element 18 being tensioned. In the transition from FIG. 4 to FIG. 5, then, since the telescopic member 17 has reached a stop, the telescopic member 16 connected to the outer operating lever 12 moves until the outer door handle 6 then reaches its maximum adjustment path in FIG. 5. The transition from FIG. 4 to FIG. 5 represents the adjustment path of the outside operating lever 12. On the last piece of the movement of the outside operating lever 12 , the reaction phase of the control electronics 3 is already completed, the motor vehicle lock 2 is unlocked, the motor vehicle door is closed the movement of the outer operating lever 12 is ultimately opened.

If you want to realize a corresponding concealment of the delay time for the reaction phase of the control electronics 3 in the case of a pure electric lock, the external actuation lever 12 is omitted. As is also indicated in Fig. 6, here the movement of the outside door handle 6 via the switch 11 triggers the granting of the access authorization. If the signal of an opening switch 14 is then given and the access authorization has been shared, the "open by wire" function, in particular the lifting of the pawl by means of an auxiliary opening drive, is initiated.

Fig. 6 shows the rest of a further embodiment of a door handle arrangement 9 according to the invention, which is characterized in that the adjustment movement of the outer door handle is slowed down by means of a braking device 20 . Here, the adjustment path of the outside door handle 6 is not artificially lengthened, thereby masking the reaction phase of the control electronics 3 , but the adjustment movement of the outside door handle 6 is deliberately slowed down. The braking device 20 can also be combined with the previously explained telescope arrangement of the first embodiment.

The embodiment of a brake device 20 shown here is particularly expedient if it slows down the adjustment movement of the outside door handle 6 , but does not increase the necessary actuating force or only increases it significantly in comparison with conventional outside door handles. This can be achieved, for example, by designing the braking device 20 as a viscosity brake. This is realized in the illustrated embodiment, in that a drive wheel 21 which meshes as a viscosity brake from the braking device 20 with a toothed rack 22 on the outer door handle 6 and is rotated when the outer door handle 6 is pulled. Inside the braking device 20 , an impeller is driven in an oil bath or another viscous medium. As a result, the adjustment movement of the outer door handle 6 is slowed down because the necessary actuating force increases drastically with an increase in the adjustment speed of the outer door handle 6 . An operator is thus in normal pulling on the outside door handle 6 the outside door handle 6 len much slower than verstel classic door handle assemblies.

Also in the latter embodiment, it is naturally recommended to provide a spring element for resetting, but one should also provide that between the braking device 20 and the outside door handle 6 for the return movement of the outside door handle 6, a freewheel is easily seen.

The two previously described configurations of a door handle arrangement 9 according to the invention are both characterized in that they have only a relatively small depth in the direction of the adjustment movement of the outer door handle 6 . This facilitates installation in modern motor vehicle doors with a window guide near the outer skin of the motor vehicle door. In both alternatives of the invention, the required lamination of the reaction phase of the control electronics 3 is achieved without requiring an excessively large adjustment path inside the motor vehicle door. The last rer would hardly be feasible even for the normal arrangement of an external operating lever 12 within the lock mechanism.

Claims (9)

1. door handle arrangement for a motor vehicle door locking system with passive entry function,
with a fixedly attached to a motor vehicle door door handle mounting (10), possibly also of two bearing parts (10 a, 10 b), and an adjustable, in particular pivotally mounted outside door handle (6) on the door handle mounting (10),
the outer door handle ( 6 ) being adjustable relative to the door handle bearing ( 10 ) from a rest position by a maximum adjustment distance into an actuating position,
wherein on the outside door handle ( 6 ) or on the door handle bearing ( 10 ) a switch ( 11 ) is arranged, which detects an actuation of the outside door handle ( 6 ) from the rest position, and
wherein the adjustment of the outer door handle ( 6 ) results in an adjustment of an external operating lever ( 12 ) of a lock mechanism or an electrical function for opening the motor vehicle door,
characterized by
that the adjustment movement of the outer door handle ( 6 ) with a delay on the outer operating lever ( 12 ) or an opening switch ( 14 ) is transmitted conditions. 2. Door handle arrangement according to claim 1, characterized in that the delay by a lost motion connection ( 15 ) between the outside door handle ( 6 ) and the outer operating lever ( 12 ) or the opening switch ( 14 ) is realized in construction. 3. Door handle arrangement according to claim 2, characterized in that the lost motion connection ( 15 ) is designed as a telescopic connection, the outer actuating lever ( 12 ) associated telescopic member ( 16 ) only moves when at least one further telescopic member ( 17 ) has covered a certain adjustment path . 4. Door handle arrangement according to claim 2 or 3, characterized in that the lost motion connection ( 15 ), in particular the telescopic connection, is biased with egg nem spring element ( 18 ) in the rest position. 5. Door handle arrangement for a motor vehicle door locking system with a passive entry function,
with a fixedly attached to a motor vehicle door door handle mounting (10), possibly also of two bearing parts (10 a, 10 b), and an adjustable, in particular pivotally mounted outside door handle (6) on the door handle mounting (10),
the outer door handle ( 6 ) being adjustable relative to the door handle bearing ( 10 ) from a rest position by a maximum adjustment distance into an actuating position,
wherein on the outside door handle ( 6 ) or on the door handle bearing ( 10 ) a switch ( 11 ) is arranged, which detects an actuation of the outside door handle ( 6 ) from the rest position, and
wherein the adjustment of the outer door handle ( 6 ) results in an adjustment of an external operating lever ( 12 ) of a lock mechanism or an electrical function for opening the motor vehicle door, possibly also according to one of claims 1 to 4,
characterized,
that the adjustment movement of the outer door handle ( 6 ) by means of a Bremseinrich device ( 20 ) is slowed down. 6. Door handle arrangement according to claim 5, characterized in that the braking device ( 20 ) the adjustment movement of the outer door handle ( 6 ) slows down without increasing the necessary actuating force. 7. Door handle arrangement according to claim 6, characterized in that the braking device ( 20 ) is designed as a viscosity brake. 8. Door handle arrangement according to one of claims 5 to 7, characterized in that the outer door handle ( 6 ) with a spring element in the rest position is biased. 9. Door handle arrangement according to one of claims 5 to 8, characterized in that the braking device ( 20 ) for the return movement of the door outer handle ( 6 ) from the actuating position to the rest position has a free run.