DE10007500A1 - Motor vehicle door lock system detects approach/contact by detecting transmitted electromagnetic wave reflections, changes in wave field, changes in antenna electrical capacitance - Google Patents

Abstract

The system detects an approach to start interrogating a data medium for identification of a person carrying the data medium. An antenna, transmitter and receiver device and/or control electronics are designed/arranged to detect an approach and/or contact by detecting reflections of transmitted electromagnetic waves, changes in a wave field especially near the door handle and/or changes in the electrical capacitance of the antenna. The system detects the approach, especially of the hand of a person, to a door handle (10) and/or contact with the door handle to start a data interrogation of a data medium for identification of a person carrying the data medium. An antenna (12), transmitter and receiver device (13) and/or control electronics (14,15) are designed and/or arranged to detect an approach and/or contact by detecting reflections of transmitted electromagnetic waves (6), by detecting changes in a wave field (16) especially near the door handle and/or by detecting changes in electrical capacitance of the antenna. Independent claims are also included for the following: a method of controlling a motor vehicle door lock system and a use of a vehicle antenna for detecting the approach of a person.

Description

The present invention relates to a motor vehicle door locking system according to the preamble of claim 1, an outside door handle assembly for a force Vehicle door locking system according to the preamble of claim 9, a ver drive to control a motor vehicle door locking system according to the Preamble of claim 12 and use of an antenna Motor vehicle according to the preamble of claim 16.

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 an operator a push button on a remote control module. This will make one 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 an outside door handle on an egg ner motor vehicle door with such a long time delay that the reaction phase of the control electronics completed for a long time and that the outside door handle assigned motor vehicle lock has been unlocked. The operator son opens the motor vehicle door by pulling the outer door handle, whereby the Motor vehicle lock either opens mechanically, i.e. the pawl the movement of the outer door handle is lifted, or elektromecha nically or pneumatically opens when a control signal is received from the outside door handle an opening drive for lifting the pawl is released.

Control electronics with a so-called "passive entry" function, also "elek called tronic key "differs from that previously explained classic motor vehicle door locking system in that the remote Control module no handling, so no button press can be made  must to the motor vehicle lock when approaching the motor vehicle to unlock. Rather, this takes place automatically when the operator approaches ungsperson to the motor vehicle.

The "passive entry" function includes an automatic, Motor vehicle-side data query or identification of an operator-side Data carrier, in particular a transponder or the like. To understand firmly deliver whether an operator approaching the motor vehicle or an operator who is already in the process of driving the motor vehicle or to open a motor vehicle door, is authorized to access. this will mostly checked by appropriate electronics of the motor vehicle. At Appropriate authorization of the operator usually takes place automatic unlocking of either a central locking system, the door lock the driver's door or at least the door lock of the door that the Operator approaches or their outside door handle the operator touched or pressed.

A motor vehicle door locking system with a "passive entry" function is required for the control electronics a specific reaction phase or time, which usually from a start-up interval to the system as the Data carrier or remote control module, an authorization Check interval for the operator based on the coding of the between Remote control module and control electronics exchanged signals on their Be authorization, and finally the actual interval of action, in which the action takes place, in particular the unlocking of the motor vehicle Castle that is being carried out.

The duration of the reaction phase of more than a hundred milliseconds is in the Compared to conventional motor vehicle door locking systems as long felt if the start-up interval only when the outer door handle is actuated starts. The pulling of the outer door handle or the like can namely with a "Pas sive entry "function may already take place when the reaction phase of the Control electronics has not yet been completed. The operator son must then pull the outer door handle a second time, which is called "false radio tion "can be interpreted.  

Because the resulting total time of the reaction phase is not shortened arbitrarily an attempt has already been made to hide the delay time (DE-A-195 21 024). With this motor vehicle door locking system, that is Start-up interval and the authorization check interval of the control electronics in moved a phase that before the noticeable by the operator operating phase. It is then noticeable for the operator only a remaining time that the reaction time of mechanical, conventional Corresponds to motor vehicle door locking systems.

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. US-A-4,868,915, which the The starting point of the present invention, in particular, discloses keyless entry system provided for motor vehicles with "Passive entry" function. The access system has an antenna and a Identification means for checking the access authorization of an operator on the side of the data carrier, provided that an operator is familiar with the data carrier is located in a surveillance area. The access system points additionally a separate proximity sensor on the access system or the check or data query is activated if an operator located in the surveillance area. At the approximation sensor is preferably a capacitive proximity sensor. However, magnetic, inductive, acoustic and similar proximity are also used tion sensors as usable. The start of the start-up interval the control electronics, ie the "wake up" or activation "of the control electronics tronics, takes place so far before the actual pulling of the door that the startup interval and usually also the authorization check tervall have already been completed when the outside door handle by hand the operator is actually moved.

A major advantage when using such an proximity sensor sors is that the relatively energy-intensive review the access authorization only takes place if a potential Be service person has approximated. A proximity sensor and its installation however, there are considerable costs involved.  

The present invention is based on the object of Door locking system, an outer door handle arrangement for a motor vehicle door locking system, a method for controlling a motor vehicle door lock systems and use of an antenna of a motor vehicle ben, so that approximation in a simple, inexpensive manner, in particular one hand of an operator, on an outside door handle and / or a Be stirring the outside door handle, especially when the energy is relatively low need and with good response, can be detected, in particular special then being a "passive entry" function of the motor vehicle door locking system activated or a start-up interval of control electronics can be started.

The above task is proposed by a motor vehicle door Locking system according to claim 1, an outside door handle arrangement according to An claim 9, a method according to claim 12 or a use according to Claim 16 solved. Advantageous further developments are the subject of the Un claims.

A basic idea of the present invention is that for the "Passive entry" function already existing antenna and its transmission and receiving device for the detection of an approach, in particular one Hand of an operator to the outside door handle and / or a touch rens of the outside door handle, in particular by a hand of an operator son to use. So an additional proximity sensor can activate tion of the "Passive Entry" function or to start a data query Operator data carrier are eliminated, which saves costs and a Simplification enables.

According to a particularly preferred embodiment variant, the one for the Da Communication already provided as an additional capacitive antenna Sensor designed to detect an approach and / or touch or arranged and usable. For this purpose, the antenna is in particular on Outside door handle arranged, preferably integrated into this or through the sen formed.  

Alternatively or additionally, an approximation and / or touch tion detection or detection by means of elec tromagnetic waves occur.

In principle, the transmitting and receiving device can be used to query data or identification of a data carrier that can be carried by an operator gers in a first frequency range, for example at about 433 MHz, and for proximity or touch sensing in a second frequency range, for example in the GHz range. However, is preferred provided that the antenna and in particular also the assigned transmission and receiving device for both the data query and for the To proximity or touch sensing work in the same frequency range, emit electromagnetic waves in this frequency range and receive.

In a particularly preferred embodiment, electromagnetic waves used for proximity or touch sensing, the one on the Enable detection based on the radar principle, d. H. it can be reflected Waves by means of the antenna and the assigned transmission and reception device or a corresponding evaluation or control electronics be grasped. Electromagnetic waves are particularly suitable for this a frequency range of more than 20 GHz and in particular of about 24 GHz.

"Capture" includes the provision of data or Measurement signals meant, their evaluation a detection or sensing enables whether an operator's hand grips the outside door handle has approximated, already touched and / or actuated it. The evaluation can directly in the transmitting and receiving device for the data question or communication with the data carrier, in the other tax electronics and / or in an additional evaluation electronics or the like gen. This is a matter of course for the expert, so that this is not dealt with in more detail, since it does not primarily matter where the Evaluation takes place.  

When using the radar principle or the detection of reflected Waves for proximity or contact sensing are possible and preferably provided the same antenna for transmission and emp catch the electromagnetic waves for data retrieval or communication nication with the data carrier. This applies in particular if the motor vehicle door locking system both in the data query as well when approaching or touching with electromagnetic Waves in the same frequency range works.

However, instead of the radar principle, there are also alternative types of detection or sensing an approach and / or touch possible. Example in particular in the area of approximation and / or contact a wave field to be monitored, where in the event of a change and / or interruption of the wave field by a Hand of an operator as an approach to the outside door handle or Touching the outer door handle can be detected and evaluated. Here separate transmitters and receivers may be required, with Re inflections on sections of the outer door handle and / or on adjacent door outside areas can be exploited and / or taken into account and accordingly, only one antenna is required, both works as a transmitter as well as a receiver. In any case, this results in especially a much greater freedom in the choice of frequency range for the electromagnetic waves.

The data carrier on the operator side is, of course, attached to the one used Adapted frequencies of the electromagnetic waves. It is also there possible that the data carrier on a different frequency, for example in a much lower frequency range, response signals to the data transmission or identification, which is then either from the same Chen, for this also sensitive antenna or an additional An tenne of the motor vehicle door locking system can be received.

Preferably, the electromagnetic waves, at least for Annä proximity or touch sensing, only transmitted in pulses. This ge allows the required energy to be minimized. Also enables or simplifies a transit time measurement, which is used to detect an approximation  and / or touching or interrupting one of the electromag netischen waves formed, for example light barrier-like wave field that enables.

Additionally or alternatively, the energy of the emitted is preferably electromagnetic waves at least when approaching or touching sensor sensation kept to a minimum. This also serves to minimize the required energy, which is usually from a Motor vehicle battery is provided.

In a particularly preferred embodiment, the approximation or loading takes place Touch sensing essentially only in the area of the outside door handle. Accordingly, the electric waves are preferably only at at least essentially radiated in the area of the outside door handle.

It is preferably provided that the antenna on the outside door handle or in an egg Nem arranged adjacent to this, especially in the outside of the door handle is integrated. In particular, the same antenna is both for Sen the as well as receiving electromagnetic waves and in particular both for data query and communication with the operator Disk as well as for proximity or touch sensing seen. This enables a simple, inexpensive construction, whereby a proximity or touch sensor with minimal energy consumption tion regarding this outside door handle is made possible.

The above applies in particular to the outside door handle of a driver's door. To In addition, an antenna can be attached to the outside door handle or in addition adjacent area of the passenger door or another door arranged in order to provide proximity or contact sensing there as well to be able to.

Especially in the case of integration of the antenna in an outside door handle order or in an outside door handle, it is advisable to use the one assigned Transmitter and receiver unit and, if necessary, a control and / or evaluation element tronics in the outside door handle and / or the outside door handle arrangement to inte freeze. In particular, a signal is sent from the control or evaluation electronics  issued that the detection or detection of an approximation and / or touch.

The transmitting and receiving unit can be used as a structural unit or assembly be formed, but if necessary also by separate components or units be formed.

Other aspects, characteristics, features and advantages of the present Invention result from the following explanation of a preferred th embodiment, which is shown in the drawing. It shows:

Figure 1 is a schematic and perspective view of a motor vehicle with a proposed motor vehicle door locking system.

Fig. 2 shows an outside door handle arrangement of the motor vehicle door lock system according to FIGS . 1 and

Fig. 3 is a schematic plan view of a proposed door handle arrangement.

In Fig. 1 a motor vehicle 1 with a force according to the proposal vehicle door locking system 2 is schematically illustrated. The motor vehicle door locking system 2 has in particular a plurality of motor vehicle locks 3 , in particular for motor vehicle doors, a motor vehicle tailgate and the like. Like., And a Hau benschloß 4 , the installation positions are indicated schematically in Fig. 1.

Each motor vehicle lock 3 is preferably unlockable and lockable, preferably by means of a motor, in particular by means of an electric motor, by means of a known central locking or a central locking drive. In an embodiment as an electric lock, which can be provided in particular in the motor vehicle locks 3 of the motor vehicle side doors, each motor vehicle lock 3 additionally has the possibility of a motorized opening, that is to say the lifting of a pawl, not shown, by means of an opening drive, not shown. In this case, the unlocking and locking can only be done in terms of circuitry. Another Va riante is the equipment of the motor vehicle locks 3 with a locking aid drive, which can be identical to or separate from the opening drive. For this purpose, reference is made to the prior art, in particular to DE-A-196 29 709.

The motor vehicle door locking system 2 is equipped with a "passive entry" function. Therefore, the motor vehicle door locking system 2 also a trained as a "Passive Entry" chip card or other data carrier or transponder 5 , which is carried by an operator (not shown) and serves as an "electronic key". A data query or identification of the data carrier 5 triggered by the motor vehicle, as indicated by electromagnetic waves 6 , can thus be carried out and the access authorization of the operator can be checked. With an appropriate access authorization, a decision is made to the particular above-mentioned prior art is carried out lock-out of the motor vehicle lock 3 of the driver's door, or for example any motor vehicle locks 3 by means of non-illustrated Central o. The like. Regard to the respective details.

The motor vehicle lock 3 of the driver's door and the hood lock 4 are each assigned a lock cylinder 7 for actuation with a mechanical key 8 . Thus, the motor vehicle lock 3 of the driver's door can be mechanically actuated or unlocked and opened with the key 8 in an emergency. A corresponding emergency release or emergency opening can be provided for the other motor vehicle locks 3 if necessary.

An outer door handle arrangement 9 is assigned to at least each motor vehicle door lock 3 of the motor vehicle side doors, as indicated in FIG. 1. Fig. 2 shows the outer door handle assembly 9 of the driver's door with integrated lock cylinder 7th The outer door handle assembly 9 also has an outer door handle 10 which is movably mounted and interacts, for example, with an associated switching device 11 of the outer door handle assembly 9 , so that when the outer door handle 10 is pulled, a switching signal is triggered to an associated, not shown, electric opening drive for opening the assigned to the motor vehicle lock 3 or for lifting the pawl of this motor vehicle lock 3 . This applies to the case of an electric lock 3 . In a mechanically operated motor vehicle lock 3 takes the place of the sound device 11, a mechanical transmission mechanism of classic design or other actuation device. However, the switching device 11 can also be omitted if the door handle 10 is not movably mounted and instead, for example, a proximity and touch sensor is provided for the automatic opening of the assigned motor vehicle lock 3 .

The outer door handle assembly 9 may also include an adjacent door area, which is not shown in FIG. 2, especially when the door outer handle assembly 9 is used together with this adjacent door area as a structural unit in the associated motor vehicle door.

Fig. 3 shows a schematic plan view of an outer door handle assembly 9 , which can be designed, for example, as described with respect to FIG. 2, but also without a locking cylinder 7 . An antenna 12 is arranged on the outer door handle 10 . In particular, the antenna 12 is integrated or recessed into the outer door handle 10 .

The antenna 12 is assigned a transmitting and receiving device 13 , which in particular forms a structural unit here, but can also be formed by separate components or assemblies. The transmitting and receiving device 13 is preferably connected to an optional decentralized evaluation or control electronics 14 and / or to a central control electronics 15 , as indicated in FIG. 1. However, the decentralized evaluation or control electronics 14 can, if necessary, also be at least partially integrated into the central control electronics 15 . The same applies to the transmitting and receiving device 13 , this and possibly the decentralized evaluation or control electronics 14 preferably being or are at least partially integrated in the outer door handle arrangement 9 .

The proposed motor vehicle door locking system 2 has a so-called "passive entry" function in the sense explained at the beginning. To determine the access authorization of an operator, not shown, the antenna 12 emits electromagnetic waves 6 , which can be received by the operator-side data carrier 5 . The data carrier 5 then in turn emits electromagnetic waves 6 , which contain data or identification signals and may possibly differ in their frequency. This radiated from the data carrier 5 electromagnetic Wel len 6 can be received by the antenna 12 and the associated transmitting and receiving device 13 , detected and possibly evaluated. However, the evaluation can alternatively or additionally take place in the control electronics 14 , 15 . This data query or identification of the data carrier 5 can determine whether the data carrier 5 and thus the operator carrying the data carrier 5 have the required access authorization.

To receive the electromagnetic waves 6 emitted by the data carrier 5 , an additional antenna (not shown) can be seen if necessary. This is particularly useful when the data carrier 5 responds on a substantially different frequency.

However, the antenna 12 is preferably provided both for transmitting and for receiving the electromagnetic waves 6 .

The antenna 12 is used in each case for the communication of information or data, in particular when querying the data from the data carrier 5 and, if appropriate, alternatively or additionally for other communication.

If it has been determined by the control electronics 14 , 15 that the data query or identification of the data carrier 5 has resulted in the required access authorization, at least the motor vehicle door lock 3 is the driver's door or that door which the operator has approached or whose outside door handle 10 Has touched and / or actuated operator, unlocked and opened if necessary. In particular, upon detection of the access authorization, all motor vehicle door locks 3 that are assigned at least to the motor vehicle side doors are unlocked

The aforementioned process until a motor vehicle door lock 3 is actually unlocked takes a certain amount of time. In particular, the "passive entry" function requires a temporal reaction phase with start-up interval, authorization check interval (data query) and action interval (unlocking).

In order to be able to achieve a timely activation of the "passive entry" function or a timely start of the start-up interval, the motor vehicle door locking system 2 according to the proposal has a proximity or touch sensor which indicates the approach of an operator or a hand of an operator the outside door handle 10 or a touch of the outside door handle 10 is grasped by a hand of an operator, so that the "passive entry" function can be activated at an early stage.

The peculiarity of the proposed solution is that the communication antenna 12 is also used for proximity or touch sensing. This is explained in more detail below with the aid of two design variants, which can also be combined with one another.

According to a first embodiment variant, the electromagnetic waves 6 emitted by the antenna 12 are not only used for querying data or identifying the data carrier 5 , but are also used for proximity or contact sensing. The measures listed below should be emphasized in particular.

The antenna 12 is arranged on the outer door handle 10 or in an adjacent door area 17 , as indicated in FIG. 3. Accordingly, the antenna 12 can emit electromagnetic waves 6 , which form a wave field 16 in the surroundings of the outside door handle 10 or the outside door handle arrangement 9 . The antenna 12 transmits in particular in pulses and in particular at relatively low energy electromagnetic waves 6 , which are reflected in the event of an operator approaching, in particular by an operator's hand approaching the outer door handle 10 , and received again by the antenna 12 . Here, the radar principle is used, in particular the transit time is recorded and evaluated for proximity or contact sensing.

Electromagnetic waves in the GHz range and preferably of approximately 24 GHz are particularly suitable for the aforementioned proximity or touch sensing. Accordingly, the antenna 12 emits electromagnetic waves 6 of suitable frequency, at least during the phase of the proximity or contact sensing. If an approach or touch has been sensed, the "passive entry" function is activated or the startup interval of the "passive entry" function is permitted. For data interrogation or identification of the data carrier 5 , the antenna 12, controlled by the transmission and reception direction 13, can optionally emit electromagnetic waves 6 with a different frequency, for example with the previously customary frequency of 433 MHz. In this case, a second transmission and reception direction, not shown, may also be provided. Preferably, however, electromagnetic waves are 5 6 the same frequency as in the approaching or Touch Sensor tion of the antenna 12 be transmitted even if the retrieval of the data carrier. Correspondingly, the data carrier 5 is then adapted to these frequencies, which are preferably approximately 24 GHz, for receiving corresponding electromagnetic waves 6 and the outside to the corresponding electromagnetic waves 6 .

The electrical waves 6 received by the antenna 12 during the proximity or touch-sensing phase are evaluated by the transmitting and receiving device 13 and / or by the optionally provided evaluation or control electronics 14 and in particular taking into account the temporal correlation to transmitted electromagnetic waves 6 detected or evaluated as an approach or touch.

Preferably, the energy of the electromagnetic waves 6 emitted during the proximity or touch sensor for minimizing the required energy requirement is lower than that required for data interrogation of the data carrier 5 .

Instead of or in addition to the detection of changes in the wave field 16 and / or reflected electromagnetic waves 6 , a low-energy data query of the data carrier 5 can also take place in such a way that the antenna 12 emits, in particular, pulsed electromagnetic waves 6 with a relatively low power and the data carrier 5 is used for the identification not sufficient, however, for the approximation or touch sensor just sufficient response signal in turn, which can be detected by the antenna 12 and then evaluated.

According to a second embodiment variant, the antenna 12 is additionally used for data communication for a capacitive proximity or touch sensor. The antenna 12 then works as a capacitive sensor or capacitive sensor element, the electrical capacitance or its changes in the antenna 12 being or being detected. When approaching an operator to the outside door handle 10 or touching the outside door handle 10 by an operator, the electrical capacity of the antenna 12 changes . Accordingly, by monitoring and evaluating the electrical capacitance or its changes, sensing or detection of an approach and / or contact is possible. The evaluation and detection takes place in particular in the evaluation or control electronics 14 . However, this function can optionally also be integrated in the transmitting and receiving device 13 and / or in the central control electronics 15 .

It should be pointed out that preferably only a single antenna 12 is provided in an outer door handle 10 or an outer door handle arrangement 9 on the driver's door. Optionally, however, at least one additional antenna 12 can also be provided , for example on the outside door handle arrangement 9 of the driver's door.

If an approach to an outside door handle 10 or at least to the outside door handle 10 of the driver's door of motor vehicle 1 is sensed or detected, the “passive entry” function is “woken up” or activated in order to start the start-up interval. Alternatively, the “waking up” or starting only takes place upon the detection or sensing of a touch of an arbitrary outside door handle 10 or the outside door handle 10 of the driver's door. In any case, an early start of the start-up interval and an early checking of the access authorization of the approached operator or the door handle 10 touching operator - achieved by data query of the data carrier 5 on the operator side - with the result that the actual actuation or pulling of the Outside door handle 10 still takes so long that then the action interval, regularly unlocking or lifting the pawl, can seemingly without delay for the operator ablau fen.

As already mentioned, both proximity and touch sensors can be used. For example, the evaluation can output a first signal when an approach is detected or sensed in order to start the "passive entry" function or the startup interval. Subsequently, with appropriate authorization and with a correspondingly timed, sensed touch of the outer door handle 10, central locking can be unlocked and / or the associated motor vehicle door lock 3 can be opened. In the latter case, a switch or the switching device 11 assigned to the outside door handle 10 can be omitted. It is then even not necessary to execute or store the outer door handle 10 or a part thereof movably.

In addition, it should be noted that the proximity sensors and / or touch sensors also used to control other motor vehicle functions and to activate other motor vehicle controls who can. Corresponding control signals are preferably output by the evaluation electronics 14 or other electronics.

Claims (16)

1. Motor vehicle door locking system ( 2 ) with a motor vehicle lock ( 3 ), which can be unlocked by motor or circuit technology and, if appropriate, can also be opened by motor, with a motor vehicle lock ( 3 ) assigned to the outside door handle ( 10 ), with an antenna ( 12 ) and an associated transmitting and receiving device ( 13 ) for transmitting and receiving elec tromagnetic waves ( 6 ) for querying data or identifying a data carrier ( 5 ), in particular a transponder, which can be carried by an operator, and with control electronics ( 14 , 15 ) for unlocking and if necessary opening the motor vehicle lock ( 3 ) with appropriate access authorization for the data carrier ( 5 ), whereby an operator, in particular an operator's hand, in particular approaches the outside door handle ( 10 ), and / or touches the outside door handle ( 10 ) to start the data query of the data carrier (S) is or are detectable, dadurc h characterized in that the antenna ( 12 ), the transmitting and receiving device ( 13 ) and / or the control electronics ( 14 , 15 ) is designed and / or arranged such that an approach of an operator and / or a touch of the outside door handle ( 10 ) by detecting reflections from sent out electromagnetic waves ( 6 ), by detecting changes in a field in particular in the area of the outside door handle ( 10 ) generated wave field ( 16 ) and / or by detecting changes in the electrical capacitance of the antenna ( 12 ) is detectable and can be evaluated to start the data query of the data carrier ( 5 ). 2. Motor vehicle door locking system according to claim 1, characterized in that the data carrier ( 5 ) and the antenna ( 12 ) or the transmitting and receiving device ( 13 ) are designed such that both for the proximity or touch detection electromagnetic waves ( 6 ) of the same frequency range can also be used for data retrieval. 3. Motor vehicle door locking system according to claim 1 or 2, characterized in that the antenna ( 12 ) or the transmitting and receiving device ( 13 ) is designed such that electromagnetic waves ( 6 ) with a frequency of substantially 20 GHz or higher can be sent and received. 4. Motor vehicle door locking system according to one of the preceding and workman surface, characterized in that for approaching or touching detection the wave field ( 16 ) can be generated in pulses and / or that the transmitting and receiving device ( 13 ) for pulsed transmission of the electromagnetic waves ( 6 ) and / or for emitting the electromagnetic waves ( 6 ) with less energy than can be operated for data query. 5. Motor vehicle door locking system according to one of the preceding and workman surface, characterized in that the same antenna ( 12 ) is provided both for the proximity or contact detection and for the data query. 6. Motor vehicle door locking system according to one of the preceding and workman surface, characterized in that the antenna ( 12 ) on the outside door handle ( 10 ) or in an adjacent area ( 17 ) is arranged, in particular in the outside door handle ( 10 ), or that the Outside door handle ( 10 ) is designed as an antenna ( 12 ). 7. Motor vehicle door locking system according to one of the preceding and workman surface, characterized in that an occurrence or absence of reflected waves ( 6 ) of the wave field ( 16 ), interruption of the wave field ( 16 ), interruption of the wave field ( 16 ) or change of transit times caused by approximation and / or touch of waves ( 6 ) of the wave field ( 16 ), in particular of the control electronics ( 14 ), can be evaluated. 8. Motor vehicle door locking system according to one of the preceding and workman surface, characterized in that the control electronics ( 14 , 15 ) is formed in such a way that they are used for data interrogation and subsequent unlocking and possibly opening of the motor vehicle lock ( 3 ) with appropriate access authorization Data carrier ( 5 ) requires a reaction phase with start-up interval, authorization check interval and action interval and that a detected approach of an operator's hand to the outside door handle ( 10 ) and / or touch of the outside door handle ( 10 ) can be evaluated as a signal for starting the start-up interval is or are. 9. outer door handle arrangement ( 9 ) for a motor vehicle door locking system ( 2 ), in particular according to one of the preceding claims, wherein the outer door handle arrangement ( 9 ) has an outer door handle ( 10 ), in particular for opening an associated motor vehicle lock ( 3 ), and possibly one to the outside door handle ( 10 ) adjacent door area ( 17 ), such as a recessed grip, characterized in that on the outside door handle ( 10 ) or on the adjacent door area ( 17 ) an antenna ( 12 ) for transmitting and receiving electromagnetic waves ( 6 ) for data communication and for detecting an approach to the outside door handle ( 10 ) or touching the outside door handle ( 10 ) or that the outside door handle ( 10 ) is designed as such an antenna ( 12 ). 10. Outside door handle arrangement according to claim 9, characterized in that the antenna ( 12 ) is designed such that electromagnetic waves ( 6 ) with a frequency of substantially 20 GHz or higher can be transmitted and received. 11. Outside door handle arrangement according to claim 9 or 10, characterized in that one of the antenna ( 12 ) assigned transmit and receive device ( 13 ) and / or evaluation or control electronics ( 14 ) in the outside door handle ( 10 ) and / or the outer door handle arrangement ( 9 ) are integrated. 12. Method for controlling a motor vehicle door locking system with min at least a motor vehicle lock and one to the motor vehicle lock orderly outside door handle, whereby electromagnetic waves from the data ask or identify a data carrier portable by an operator  be transmitted and received, the motor vehicle unlocked with appropriate access authorization of the data carrier or is opened if necessary, whereby an approaching, in particular a hand of a Operator, on the outside door handle and / or touching the door handle is detected and evaluated to start the data query or become, characterized, that the electromagnetic waves used to query the data additionally for the detection of an approach to the outside door handle and / or touching the Outside door handle can be used and / or that the antenna in addition as capacitive sensor for detecting an approach to the outside door handle and / or touching the outer door handle is used. 13. The method according to claim 12, characterized in that for detection tion of approaching and / or touching the electromagnetic waves in pulses and / or with less energy than required for data query be sent out. 14. The method according to claim 12 or 13, characterized in that for Detection of an approach and / or touch reflected waves detected and their runtime is evaluated in particular. 15. The method according to any one of claims 12 to 14, characterized in that to detect approaching and / or touching the electrical Kapa zity or their changes in the antenna is detected and evaluated or become. 16. Use of an antenna of a motor vehicle, the antenna being able to emit and receive electromagnetic waves for data communication, characterized in that the antenna is used to receive reflecting waves for detecting an approach of an operator and / or that the antenna ( 12 ) is used as a capacitive proximity or touch sensor.