EP1238177B1 - Exterior door handle system - Google Patents

Exterior door handle system Download PDF

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Publication number
EP1238177B1
EP1238177B1 EP00993269A EP00993269A EP1238177B1 EP 1238177 B1 EP1238177 B1 EP 1238177B1 EP 00993269 A EP00993269 A EP 00993269A EP 00993269 A EP00993269 A EP 00993269A EP 1238177 B1 EP1238177 B1 EP 1238177B1
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EP
European Patent Office
Prior art keywords
door handle
exterior door
sensor
exterior
sensor element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00993269A
Other languages
German (de)
French (fr)
Other versions
EP1238177A1 (en
EP1238177B2 (en
Inventor
Edgar Budzynski
Matthias Koerwer
Stephan Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Schliesssysteme GmbH and Co KG
Original Assignee
Brose Schliesssysteme GmbH and Co KG
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Filing date
Publication date
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Application filed by Brose Schliesssysteme GmbH and Co KG filed Critical Brose Schliesssysteme GmbH and Co KG
Publication of EP1238177A1 publication Critical patent/EP1238177A1/en
Publication of EP1238177B1 publication Critical patent/EP1238177B1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/10Handles
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00Power-actuated vehicle locks
    • E05B81/54Electrical circuits
    • E05B81/64Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/01Mechanical arrangements specially adapted for hands-free locking or unlocking
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/50Special application
    • Y10T70/5889For automotive vehicles
    • Y10T70/5894Plural point
    • Y10T70/5898With switch
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/60Systems
    • Y10T70/625Operation and control
    • Y10T70/65Central control
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7051Using a powered device [e.g., motor]
    • Y10T70/7062Electrical type [e.g., solenoid]
    • Y10T70/7068Actuated after correct combination recognized [e.g., numerical, alphabetical, or magnet[s] pattern]

Definitions

  • the present invention relates to an outside door handle assembly according to the The preamble of claim 1 and a method for controlling a motor vehicle door closing system according to claim 32.
  • Electromechanical motor vehicle door locking systems are known. After a Unlocking, for example by means of a radio remote control, pulls an operator at an outside door handle of a motor vehicle door, wherein an associated Motor vehicle door lock is opened by a door outside the handle associated sensor, in particular a switch, a control signal to an opening drive for lifting a pawl of the motor vehicle door lock is issued.
  • a control signal to an opening drive for lifting a pawl of the motor vehicle door lock is issued.
  • a movably mounted outside door handle provided.
  • a mobile storage is elaborate and vulnerable.
  • the known outside door handle assembly from which the present invention proceeds (WO 99/28170 A1), shows an outside door handle and the outside door handle associated sensor for detecting an actuation of the outer handle by the Hand of an operator.
  • the sensor is used to activate the outside door handle assembly.
  • the door is opened by the outside door handle opposite a fixed bracket is pivoted (pull handle or folding handle).
  • a similar construction also shows another citation (DE 198 05 659 C1).
  • the teaching is the Problem underlying the known outside door handle assembly and a corresponding Design control method of a motor vehicle door locking system so and to further develop that ergonomically in a simple and cost effective manner improved control is ensured, in particular an opening drive or to control a central locking system.
  • a basic idea of the present invention is the outside door handle in total without moving parts and at least partially elastically deformable form and a deformation of the outside door handle by means a sensor to detect and detect as an operation of the outside door handle.
  • the response of the sensor is preferably such that even a slight Deforming the outside door handle - especially in a special sensitive area - is sufficient to allow actuation of the sensor and / or a associated electronics can be detected. It then takes place, for example, a motor Opening an associated motor vehicle door lock. Depending on the required Deformation is the deformability of the outside door handle for the Operator virtually unnoticeable.
  • a deformation of the Outside door handle in particular the pressing in of a side wall of the outside door handle, with a maximum amplitude of preferably 0.01 mm to 1.0 mm, in particular from 0.1 mm to 0.5 mm.
  • signal filtering and / or time slots - minimum and / or maximum time limits - for example, vibrations of the outside door handle in normal Motor vehicle operation not to be interpreted as an operation.
  • both a tensile load and a compressive load of Outside door handle detectable.
  • the senor serves both a Detection of a deformation of the outside door handle - so an actuation sensing - As well as a detection of an approach, in particular one Hand of an operator on the outside door handle - so an approach sensation.
  • This can be achieved, for example, in that the sensor Capacitive works and different thresholds and / or different Has sensor elements or electrodes.
  • a capacitive Force sensor In contrast to a pure pressure / train detection one can use a capacitive Force sensor also detect static forces, so that one on the outside door handle acting constant force as long as a signal generated as it rests there. This can be used, for example, to lift the pawl for so long to hold as the outside door handle is pulled. The sensor provides the required Signal available, which is an independent fulfillment of this function allowed.
  • the inventive method for controlling a motor vehicle door locking system with a fixed outside door handle allows a convenient Operation of the motor vehicle door lock.
  • Fig. 1 is a schematic representation of a motor vehicle 1 with a motor vehicle door locking system 2 shown.
  • the motor vehicle door locking system 2 has in particular several motor vehicle door locks 3, in particular for motor vehicle doors 4, a motor vehicle tailgate, a hood u. Like., On, whose Installation positions in Fig. 1 are indicated schematically.
  • each motor vehicle door lock 3 is motorized, in particular electromotive, by means of a known central locking or a Central locking drive unlockable and lockable.
  • each motor vehicle lock 3 additionally the possibility of a motorized opening, So the lifting of a pawl, not shown, by means of a not illustrated opening drive on.
  • the unlocking and locking can Accordingly, only circuit technology.
  • the motor vehicle door locking system 2 is preferably provided with a "Passive Feature "Under Entry” function is here in particular an automatic, vehicle-side data query or identification an operator-side data carrier, transponders 5 o. The like. Understand to determine whether an approaching the motor vehicle 1 operator or an operator who is already in the process of that To open motor vehicle 1 and a motor vehicle door 4, entitled to access is. This is usually done by a corresponding electronics of the motor vehicle 1 checked. With appropriate authorization of the operator usually an automatic unlocking of either a central locking, the door lock 3 of the driver's door 4 or at least the door lock 3 of the door 4, which the operator approaches or the outside door handle the operator touches or operates.
  • the motor vehicle door closing system 2 includes a in particular as a "Passive Entry” chip card formed or other media or transponder 5, by an operator, not shown is carried along and serves as an "electronic key”. So can one Motor vehicle side triggered data query or identification of the disk or transponders 5, as indicated by signal waves 6 performed and the access authorization of the operator to be checked. With appropriate access authorization is unlocked preferably all motor vehicle door locks 3 by means not shown Central locking o.
  • the motor vehicle door lock 3 of the driver's door and the hood lock are If necessary, in each case a lock cylinder 7 for actuation with a mechanical Key 8 assigned.
  • the motor vehicle door lock 3 the driver's door with the key 8 mechanically actuated or unlocked in an emergency and be opened.
  • a corresponding emergency release or emergency opening If necessary, for the motor vehicle door locks 3 of be provided other doors 4.
  • each vehicle door lock 3 of the vehicle side doors 4 is an outside door handle assembly 9 assigned, as indicated in Fig. 1.
  • Fig. 2 shows the outside door handle assembly 9 of the driver's door with integrated lock cylinder 7, which is mounted for example in a guide element 11. however can the lock cylinder 7 and its guide element 11, if necessary also omitted.
  • the outside door handle assembly 9 further includes an outside door handle 10, the is stationary and no moving parts, such as a movable Actuating or opening lever o.
  • a movable Actuating or opening lever o The like., Has. Shown is a Bow handle, as a possible alternative, a flap handle can be used become.
  • the outside door handle assembly 9 may also include an adjacent door area, which is not shown in Fig. 2, include, in particular when the outside door handle assembly 9 together with this adjacent door area as Assembly is used in the associated motor vehicle door 4. This is due to the fixed outside door handle 10 but not essential. Rather, a so-called back plate of the outside door handle assembly 9 also omitted and instead the intervention space directly from the associated motor vehicle door 4 on the one hand and the outside door handle 10 on the other be defined or formed.
  • Fig. 3 shows a schematic plan view of an outside door handle assembly 9, the For example, as described with respect to FIG. 2 with, but also without lock cylinder 7 may be formed.
  • a deformation, force and / or pressure-sensitive sensor element 13 is arranged on the outside door handle 10, as shown in Fig. 3, or otherwise connected thereto or integrated into it.
  • the sensor element 13 is in particular a piezoelectric element in the sense already mentioned. This is a piezocrystal, the upon deformation by charge displacement an electrical voltage, in particular on its sides perpendicular to the deformation direction generated.
  • a capacitive evaluation ie detection of the charge shift or capacity changes during deformation of the piezoelectric element.
  • a resistive evaluation is possible.
  • the sensor 12 or the sensor element 13 has a minimum or, in particular when using a piezoelectric element, no energy requirement, so that at most a very low energy requirement for the particular ongoing repeated evaluation to check if an actuation the outside door handle 10 has been detected exists.
  • the outside door handle 10 defines or defines an engagement space 14 for a not shown hand of an operator.
  • Engagement space 14 is Here, accordingly, in particular to understand the space in which a not illustrated hand of an operator usually for actuating the Outside door handle 10 engages.
  • the sensor element 13 is gem. Fig. 3 on the Eingreifraum 14 facing inner wall or inside 15 of the outside door handle 10 arranged.
  • the sensor element 13 covers the Inside 15 and / or adjacent areas of the outside door handle 10 over a large area, preferably substantially complete.
  • the sensor element 13 is integrated into the exterior door handle 10, especially arranged inside.
  • the outside door handle 10 is - at least partially - elastically deformable educated.
  • the sensor 12 may be one caused by an operation Detecting deformation of the outside door handle 10, so that the operation can be detected is.
  • the outside door handle 10 is fixed, i. rigid with the associated Motor vehicle door 4 or the associated door area 16 or other Parts of the outside door handle assembly 9 connected.
  • the senor 12 is an evaluation unit or electronics 17 associated, as indicated in Fig. 3, in particular in the outside door handle assembly 9 and the outside door handle 10 at least partially, in particular is fully integrated.
  • the sensor 12 and the optional provided evaluation electronics 17 designed such that between a initial touching and actually operating the outside door handle 10 differentiated by an unillustrated hand of an operator can be.
  • this is the strength of Meßsignaéesung the sensor 12, so the strength of the deformation of the outside door handle 10 detected and evaluated.
  • This can also increase the time of deformation and / or the time interval between exceeding certain thresholds be considered, for example, the usual increase the measured values or changing the measured values in the normal course of the Touching and then pressing the outside door handle 10 to detect.
  • FIG 4 shows a preferred detection or evaluation of an actuation of the Outside door handle 10 - so the Betuschistssenstechnik - explained in more detail.
  • Fig. 4 a shows an example of a waveform of the sensor 12 and the sensor element 13 output or provided signal. If not one shown operator actuates the outside door handle 10 - so pulls - This is registered by the sensor 12 or sensor element 13 and a first signal A issued. In the preferably intended use of a Piezoelectric element as a sensor element 13 or another, only to changes Reactive or sensitive sensor element results only a short-term first signal A, as shown.
  • a second signal B is output, as also indicated in Fig. 4 a). Also the second signal B is only relative for a short time.
  • the beginning and the End of the operation of the outside door handle 10 derived. Accordingly becomes dependent on the detection of the first signal A and the detection of the second signal B determines an actuation signal C, as exemplified or shown schematically in Fig. 4 b).
  • the motor vehicle door lock associated with the operated outside door handle 10 3 motor open provided the motor vehicle door lock 3 is already unlocked and / or a corresponding access authorization is present or detected by the control electronics 18.
  • the unlocking of the motor vehicle door lock 3 can already by the operation of the outside door handle 10 are switched. You can z. B. Provide that by briefly pulling the outside door handle unlocking the Motor vehicle door lock 3 takes place and by prolonged pulling or through Pulling twice a motorized opening of the motor vehicle door lock 3 he follows. In each case, it is necessary to have an appropriate access authorization is present.
  • the proposed evaluation and provision of the actuation signal C can be done in particular by the transmitter 17. however the evaluation can optionally also in the control electronics 18 or take place in another device of the motor vehicle 1.
  • the actuating signal C can also as a logical state of the controller, in particular the control electronics 18 o. Like. Be understood. Depending on this logical state the associated motor vehicle door lock 3, as already explained, unlocked and locked, opened and closed.
  • the opening of the motor vehicle door lock 3 takes place in particular by that a pawl, not shown, of the motor vehicle door lock. 3 dug during the opening state or in a non-blocking Condition is brought or moved.
  • the first signal A and the second signal B opposite polarities or opposite temporal courses. This facilitates the detection.
  • this behavior just happens in the preferably used piezoelectric element and capacitive evaluation on.
  • the detection can take place, for example, by exceeding the limit a certain (positive or negative) threshold value of a (positive or negative) negative) rate of change - ie time derivative - and / or an integral value o. The like.
  • the sensor 12 or sensor element 13 signal detected and as the first signal A or second signal B. is evaluated.
  • a certain (positive or negative) threshold value of a (positive or negative) negative) rate of change - ie time derivative - and / or an integral value o The like.
  • the proposed actuation sensing is not limited to the first signal A and the second signal B have opposite polarities or have temporal courses. This is advantageous, but with appropriate Entry criteria not required.
  • the proposed operation sensing can also be occur when the sensor 12 or the sensor element 13 provides a signal, for example, during the entire duration of an operation of the Outside door handle 10 - possibly with certain fluctuations - is applied. This is for example in the case of a sensor 12 or sensor element 13, the case in which the Sensor signal proportional to the applied force or acting Pressure is.
  • the first signal A can then, for example, as a flank - stronger time increase - of the sensor signal and the second signal B as opposite Edge - strong temporal drop - the sensor signal are detected.
  • Betschistssenstechnik also for Control of other vehicle functions and to activate others Motor vehicle controls can be used.
  • a pressure load the outside door handle 10 - substantially as indicated by arrow 20 - detectable is.
  • a pressing for example, a not shown Hand of an operator, on the outside door handle 10 in a preferential manner marked portion 21 on the outside 22 or any other suitable area of the outside door handle 10 detectable.
  • This capture a pressure load 20 may additionally or alternatively for detecting a Tensile load 19 done.
  • the detection of a pressure load 20 by a corresponding Evaluation of the already to detect a tensile load 19 used signals A and B, as indicated in Fig. 5, take place. If first, the second signal B occurs and then - especially within a predetermined temporal window or interval - the first signal A. occurs, as indicated in Fig. 5 a), this can as the closing signal D of FIG. 5th b) are evaluated. However, the closing signal D can only after detection of the first signal A within a time not shown Window generated or output, as in the case of FIG. 5 c).
  • Fig. 4 makes in connection with Fig. 5 the complete signal generation clearly. The signal evaluation in the control electronics leads to the then desired Control variants.
  • the detection of a - for a function execution sufficient, possibly exceeding a predetermined threshold - Compressive load 20 of the outside door handle 10 or preferably particularly sensitive section 21 in other ways than by detection and evaluation of the signals A, B, for example by means of Sensors 12 or an additional sensor, done in the usual way.
  • the outside door handle assembly 9 and the outside door handle 10 designed so that the sensor 12 both a tensile load 19 and can sense a pressure load 20, so a total of only one sensor 12 required is. If necessary, however, several sensors 12 and / or sensor elements 13 under redundancy aspects and / or for selective detection of a tensile load 19 or a compressive load 20 be provided.
  • the outside door handle 10 sufficient formed elastically deformable, so that at a pressure load 20 the corresponding deformation of the sensor 12 or its sensor element 13 is detectable.
  • the outside door handle 10 - as in all illustrated and described alternative embodiments - preferably at least substantially fixed.
  • the outside door handle 10 thus has - even with multi-part design - no moving parts in the sense of a switch, button o. The like. On.
  • This also allows one simplified construction of the outside door handle assembly 9, as a mobile Storage of parts o. The like. Eliminated.
  • the outside door handle 10 or at least parts or portions thereof is or are formed elastically deformable, that in particular in the case of Embodiments gem.
  • Fig. 6 to 10 both a tensile load 19 and a pressure load 20 can be detected.
  • the outside door handle 10 is designed in several parts, here two outside door handle parts 10 'formed.
  • a preferably strip-shaped carrier 23 which is assigned to the sensor 12 and its sensor element 13 is.
  • the sensor element 13 is a piezoelement with the carrier 23 connected and possibly arranged on this.
  • the carrier 23 have a corresponding recess, so that the sensor element 13 can be acted on both sides, or on both sides the carrier 23, a sensor element 13 may be arranged.
  • the carrier 23 is preferably only in opposite end regions 24 firmly connected to the outside door handle 10 and otherwise extends at least essentially within a door outside handle 10 formed Cavity 25.
  • the carrier 23 is strip-shaped and extends preferably approximately over the entire length of the outside door handle 10 or at least a substantial part of it.
  • the carrier 23 is preferably rigid, at least in relation to the other outside door handle 10 or its parts 10 'formed. It is preferably made of metal, but it can also be made Be made of plastic.
  • a very good response is achieved in particular by the fact that according to the schematic diagram of FIG. 7 elastically deformable or depressible Side walls 26 of the cavity 25 and the outside door handle 10 directly or via protrusions 27 on the sensor 12 and its sensor element 13 with a corresponding load on the outside door handle 10 act can.
  • a very small area leads - in the limit, essentially punctiform - force introduction to a particularly good response especially when using a piezoelectric element as a sensor element 13th
  • a strain gauge o. o. The like.
  • As a sensor element 13 can be used if necessary.
  • the projections 27 are hemispherical, pin-like, frusto-conical or cone-shaped. So be a very small area Force application and thus a high pressure achieved, which is a good Responsiveness is conducive.
  • the structure described above causes an at least partial Deformation of the outside door handle 10 with high sensitivity can be detected, wherein between a tensile load 19 and a pressure load 20 can be distinguished.
  • the senor 12 or the sensor element 13 can also be between two sections or parts 23 'of the carrier 23 is arranged and held be. However, it is also a continuous-carrier sandwich type construction 23, as shown in the illustration. Fig. 6, possible.
  • FIG. 8 shows a further embodiment variant which is very similar to FIGS. 6 and 7 the outside door handle assembly 9 and the outside door handle 10.
  • the sensor 12 or its sensor element 13 intended.
  • the carrier 23 is only firmly clamped at one end portion 24 and ends with the other end portion between the side walls 26 and their projections 27th
  • a deformation acts indirectly on the carrier 23 here the sensor 12 or the sensor element.
  • the sensor element 13 at deformation of the outside door handle 10, if necessary, to bend and / or Stretching or compression claimed.
  • FIGS. 6 and 7 will be the case.
  • a strain gauge o o. The like.
  • As a sensor element 13 can be used.
  • FIG. 9 shows a further embodiment.
  • the sensor 12 at least an electrode assembly 30 as a sensor element 13.
  • the electrode arrangement In the illustrated embodiment, FIG. 30 includes two electrodes 31 and 32, for example, in the area of opposite inner walls of the Outside door handle 10 are arranged.
  • the electrodes 31, 32 by metal foils on the inner sides 28 of the elastically deformable or depressible side walls 26 may be formed.
  • the electrodes 31 and 32 are arranged so that an electrode 31 of the outside 22 of the outside door handle 10 and the section 21 is adjacent and the other electrode 32 of the inside 15 of the outside door handle 10 and Intervention space 14 is adjacent.
  • the electrodes extend 31, 32 transversely to the direction of a tensile load to be detected 19 or Pressure load 20.
  • the electrode assembly 30 forms at Representation example so primarily a capacitive sensor.
  • the Electrode assembly 30 also work differently or evaluated. For example, depending on the deformation of the outside door handle 10 and others electrical characteristics, such as inductance, resistance, impedance o. The like. changed and evaluated to detect a tensile or compressive load 19, 20 become.
  • suitable, for example, dielectric or magnetic properties the cavity 25 may also be omitted and, for example, by be replaced a compressible, not shown area.
  • the electrode assembly 30 is not for distinction between a tensile load 19 and a pressure load 20 suitable.
  • a tensile load 19 and a pressure load 20 suitable are provided.
  • suitable Choice of material and with such a structure such specific changes electrical / magnetic characteristics are achieved that a distinction between tensile load 19 and pressure load 20 also at only two electrodes 31, 32 is possible.
  • Another advantage of the electrode assembly 30 or in use a capacitive sensor 12 for sensing an operation of the outside door handle 10 is that at the same time a proximity sensing feasible is. For example, with the electrode assembly 30 by changing the electrical capacitances are detected, if not shown Hand of an operator engages in the engagement space 14. Accordingly, therefore, only one sensor 12 for both the actuation sensing and for proximity sensing required.
  • the electrode assembly 30 also - especially with a capacitive evaluation - similar or comparable Signals as the signals A, B can provide as shown in FIG. So it is a corresponding evaluation possible.
  • Electrodes 31, 32 can also strain gauges, Piezo elements u. Like., Especially on the inner walls, be provided.
  • the electrodes 31, 32 may be formed into a measuring loop, as shown in FIG Fig. 9 indicated connection 29 - are connected, for example due to changes in inductance or inductance deformations too to capture.
  • outside door handle assembly 9 and the outside door handle 10 as needed, with each other be combined.

Description

Die vorliegende Erfindung betrifft eine Türaußengriffanordnung gemäß dem Oberbegriff des Anspruchs 1 und ein Verfahren zur Steuerung eines Kraftfahrzeug-Türschließsystems gemäß Anspruch 32.The present invention relates to an outside door handle assembly according to the The preamble of claim 1 and a method for controlling a motor vehicle door closing system according to claim 32.

Bekannt sind elektromechanische Kraftfahrzeug-Türschließsysteme. Nach einer Entriegelung, beispielsweise mittels einer Funkfernbedienung, zieht eine Bedienungsperson an einem Türaußengriff einer Kraftfahrzeugtür, wobei ein zugeordnetes Kraftfahrzeug-Türschloß dadurch geöffnet wird, daß von einem dem Türaußengriff zugeordneten Sensor, insbesondere einem Schalter, ein Steuersignal an einen Öffnungsantrieb zum Ausheben einer Sperrklinke des Kraftfahrzeug-Türschlosses ausgegeben wird. Beim Stand der Technik ist üblicherweise ein beweglich gelagerter Türaußengriff vorgesehen. Eine bewegliche Lagerung ist aufwendig und anfällig.Electromechanical motor vehicle door locking systems are known. After a Unlocking, for example by means of a radio remote control, pulls an operator at an outside door handle of a motor vehicle door, wherein an associated Motor vehicle door lock is opened by a door outside the handle associated sensor, in particular a switch, a control signal to an opening drive for lifting a pawl of the motor vehicle door lock is issued. In the prior art is usually a movably mounted outside door handle provided. A mobile storage is elaborate and vulnerable.

Die bekannte Türaußengriffanordnung, von der die vorliegende Erfindung ausgeht (WO 99/28170 A1), zeigt einen Türaußengriff und einen dem Türaußengriff zugeordneten Sensor zum Erfassen einer Betätigung des Außengriffs durch die Hand einer Bedienungsperson. Der Sensor dient zum Aktivieren der Türaußengriffanordnung. Das Öffnen der Tür erfolgt dadurch, daß der Türaußengriff gegenüber einer feststehenden Halterung geschwenkt wird (Ziegriff oder Klappgriff). Eine ähnliche Konstruktion zeigt auch eine weitere Entgegenhaltung (DE 198 05 659 C1).The known outside door handle assembly, from which the present invention proceeds (WO 99/28170 A1), shows an outside door handle and the outside door handle associated sensor for detecting an actuation of the outer handle by the Hand of an operator. The sensor is used to activate the outside door handle assembly. The door is opened by the outside door handle opposite a fixed bracket is pivoted (pull handle or folding handle). A similar construction also shows another citation (DE 198 05 659 C1).

Ausgehend von dem zuvor erläuterten Stand der Technik liegt der Lehre das Problem zugrunde, die bekannte Türaußengriffanordnung und ein entsprechendes Steuerungsverfahren eines Kraftfahrzeug-Türschließsystems so auszugestalten und weiterzubilden, daß auf einfache und kostengünstige Weise eine ergonomisch verbesserte Steuerung gewährleistet ist, insbesondere um einen Öffnungsantrieb oder ein Zentralverriegelung anzusteuern.Based on the previously described prior art, the teaching is the Problem underlying the known outside door handle assembly and a corresponding Design control method of a motor vehicle door locking system so and to further develop that ergonomically in a simple and cost effective manner improved control is ensured, in particular an opening drive or to control a central locking system.

Die zuvor aufgezeigte Problemstellung wird bei einer Türaußengriffanordnung mit den Merkmalen des Oberbegriffs von Anspruch 1 durch die Merkmale des kennzeichnenden Teils von Anspruch 1 gelöst. Sie wird auch gelöst bei einem Verfahren gemäß Anspruch 32. Bevorzugte Ausgestaltungen und Weiterbildungen sind Gegenstand der jeweiligen Unteransprüche.The above-indicated problem is with an outside door handle assembly with the features of the preamble of claim 1 by the features of characterizing part of claim 1. It is also solved at one A method according to claim 32. Preferred embodiments and further developments are the subject of the respective subclaims.

Eine grundlegende Idee der vorliegenden Erfindung liegt darin, den Türaußengriff insgesamt ohne bewegliche Teile auszuführen und zumindest bereichsweise elastisch verformbar auszubilden und eine Verformung des Türaußengriffs mittels eines Sensors zu detektieren und als Betätigung des Türaußengriffs zu erfassen.A basic idea of the present invention is the outside door handle in total without moving parts and at least partially elastically deformable form and a deformation of the outside door handle by means a sensor to detect and detect as an operation of the outside door handle.

Die erfindungsgemäße Idee führt zu mehreren Vorteilen. So ist eine einfache, kostengünstige Realisierung möglich. Ferner kann eine hohe Funktionssicherheit erreicht werden. Insbesondere ist eben keine bewegliche Lagerung des Türaußengriffs erforderlich. Es ist kein Taster o. dgl. erforderlich, um eine Öffnungsbewegung in ein elektrisches Betätigungssignal zur Ansteuerung eines zugeordneten Kraftfahrzeug-Türschlosses umzusetzen. Dementsprechend sind auch dort keine beweglichen Teile erforderlich, die Ausfallen bzw. Fehlfunktionen verursachen können.The idea according to the invention leads to several advantages. So is a simple, cost-effective implementation possible. Furthermore, a high reliability be achieved. In particular, just is not a movable storage of the outside door handle required. It is not a button o. The like. Required to an opening movement in an electrical actuating signal for controlling an associated Implement motor vehicle door lock. Accordingly, there are too No moving parts are required that cause failures or malfunctions can.

Das Ansprechverhalten des Sensors ist vorzugsweise derart, daß bereits ein geringfügiges Verformen des Türaußengriffs - insbesondere in einem besonders sensitiven Bereich - genügt, damit eine Betätigung vom Sensor und/oder von einer zugeordneten Elektronik erfaßbar ist. Es erfolgt dann beispielsweise ein motorisches Öffnen eines zugeordneten Kraftfahrzeug-Türschlosses. Je nach erforderlichen Verformungsweg ist die Verformbarkeit des Türaußengriffs für die Bedienungsperson quasi nicht spürbar.The response of the sensor is preferably such that even a slight Deforming the outside door handle - especially in a special sensitive area - is sufficient to allow actuation of the sensor and / or a associated electronics can be detected. It then takes place, for example, a motor Opening an associated motor vehicle door lock. Depending on the required Deformation is the deformability of the outside door handle for the Operator virtually unnoticeable.

Gemäß einer bevorzugten Ausführungsvariante genügt eine Verformung des Türaußengriffs, insbesondere das Eindrücken einer Seitenwandung des Türaußengriffs, mit einer maximalen Amplitude von vorzugsweise 0,01 mm bis 1,0 mm, insbesondere von 0,1 mm bis 0,5 mm. Je nach vorgesehenen Verformungsweg kann es bei der Signalauswertung erforderlich sein, Signalfilterungen und/oder zeitliche Fenster - zeitliche Mindest- und/oder Höchstabstände - vorzusehen, um beispielsweise Schwingungen des Türaußengriffs beim normalen Kraftfahrzeugbetrieb nicht als Betätigung zu interpretieren. According to a preferred embodiment, a deformation of the Outside door handle, in particular the pressing in of a side wall of the outside door handle, with a maximum amplitude of preferably 0.01 mm to 1.0 mm, in particular from 0.1 mm to 0.5 mm. Depending on the intended deformation it may be necessary in the signal evaluation, signal filtering and / or time slots - minimum and / or maximum time limits - for example, vibrations of the outside door handle in normal Motor vehicle operation not to be interpreted as an operation.

Vorzugsweise sind sowohl eine Zugbelastung als auch eine Druckbelastung des Türaußengriffs erfaßbar. Beispielsweise kann eine Verriegelung eines Kraftfahrzeug-Türschlosses oder einer Zentralverriegelung bei Drücken auf den Türaußengriff - insbesondere in einem hierfür besonders empfindlichen Abschnitt - erfolgen.Preferably, both a tensile load and a compressive load of Outside door handle detectable. For example, a lock of a motor vehicle door lock or central locking when pressing the outside door handle - especially in a particularly sensitive section - respectively.

Gemäß einer vorteilhaften Ausführungsvariante dient der Sensor sowohl einer Detektion einer Verformung des Türaußengriffs - also einer Betätigungssensierung - als auch einer Detektion einer Annäherung, insbesondere einer Hand einer Bedienungsperson an den Türaußengriff - also einer Annäherungssensierung. Dies kann beispielsweise dadurch erreicht werden, daß der Sensor kapazitiv arbeitet und unterschiedliche Ansprechschwellen und/oder unterschiedliche Sensorelemente bzw. Elektroden aufweist. Insbesondere ist dann vorgesehen, daß bei Erfassung einer Annäherung die Zugangsberechtigung einer Bedienungsperson überprüft wird, also eine "Passive Entry"-Funktion aktiviert wird.According to an advantageous embodiment, the sensor serves both a Detection of a deformation of the outside door handle - so an actuation sensing - As well as a detection of an approach, in particular one Hand of an operator on the outside door handle - so an approach sensation. This can be achieved, for example, in that the sensor Capacitive works and different thresholds and / or different Has sensor elements or electrodes. In particular, then provided that upon detection of an approach the access authorization of a Operator is checked, ie a "Passive Entry" feature activated becomes.

Im Gegensatz zu einer reinen Druck-/Zugerkennung kann man mit einem kapazitiven Kraftsensor auch statische Kräfte erfassen, so daß eine auf den Türaußengriff wirkende konstante Kraft so lange ein Signal erzeugt wie sie dort anliegt. Das kann man beispielsweise dazu nutzen, um die Sperrklinke so lange angehoben zu halten wie der Türaußengriff gezogen wird. Der Sensor stellt das erforderliche Signal zur Verfugung, das eine selbständige Erfüllung dieser Funktion erlaubt.In contrast to a pure pressure / train detection one can use a capacitive Force sensor also detect static forces, so that one on the outside door handle acting constant force as long as a signal generated as it rests there. This can be used, for example, to lift the pawl for so long to hold as the outside door handle is pulled. The sensor provides the required Signal available, which is an independent fulfillment of this function allowed.

Das erfindungsgemäße Verfahren zur Steuerung eines Kraftfahrzeug-Türschließsystems mit einem feststehenden Türaußengriff erlaubt eine zweckmäßige Betätigung des Kraftfahrzeug-Türschlosses.The inventive method for controlling a motor vehicle door locking system with a fixed outside door handle allows a convenient Operation of the motor vehicle door lock.

Weitere Aspekte, Eigenschaften, Merkmale und Vorteile der vorliegenden Erfindung ergeben sich aus der nachfolgenden Erläuterung bevorzugter Ausführungsbeispiele, die in der Zeichnung dargestellt sind. Es zeigt:

Fig. 1
eine schematische, perspektivische Ansicht eines Kraftfahrzeugs mit einem Kraftfahrzeug-Türschließsystem;
Fig. 2
eine Türaußengriffanordnung des Kraftfahrzeug-Türschließsystems gemäß Fig. 1;
Fig. 3
eine schematische Draufsicht einer Türaußengriffanordnung;
Fig. 4 a, b
schematische Signaldiagramme bei Erfassung einer Zugbelastung;
Fig. 5 a, b, c
schematische Signaldiagramme bei Erfassung einer Druckbelastung; und
Fig. 6 - 9
schematische Schnittdarstellungen weiterer Türaußengriffanordnungen.
Further aspects, characteristics, features and advantages of the present invention will become apparent from the following explanation of preferred embodiments, which are illustrated in the drawing. It shows:
Fig. 1
a schematic, perspective view of a motor vehicle with a motor vehicle door closing system;
Fig. 2
an outside door handle assembly of the motor vehicle door locking system of FIG. 1;
Fig. 3
a schematic plan view of an outside door handle assembly;
Fig. 4 a, b
schematic signal diagrams upon detection of a tensile load;
Fig. 5 a, b, c
schematic signal diagrams upon detection of a pressure load; and
Fig. 6-9
schematic sectional views of other outside door handle assemblies.

Für gleiche oder ähnliche Teile werden die selben Bezugszeichen verwendet, und es ergeben sich entsprechende bzw. vergleichbare Vorteile und Eigenschaften, auch wenn eine wiederholte Beschreibung weggelassen ist.The same reference numbers are used for the same or similar parts, and there are corresponding or comparable advantages and properties, even if a repeated description is omitted.

In Fig. 1 ist schematisch ein Kraftfahrzeug 1 mit einem Kraftfahrzeug-Türschließsystem 2 dargestellt. Das Kraftfahrzeug-Türschließsystem 2 weist insbesondere mehrere Kraftfahrzeug-Türschlösser 3, insbesondere für Kraftfahrzeugtüren 4, eine Kraftfahrzeugheckklappe, eine Motorhaube u. dgl., auf, deren Einbaupositionen in Fig. 1 schematisch angedeutet sind.In Fig. 1 is a schematic representation of a motor vehicle 1 with a motor vehicle door locking system 2 shown. The motor vehicle door locking system 2 has in particular several motor vehicle door locks 3, in particular for motor vehicle doors 4, a motor vehicle tailgate, a hood u. Like., On, whose Installation positions in Fig. 1 are indicated schematically.

Vorzugsweise ist jedes Kraftfahrzeug-Türschloß 3 motorisch, insbesondere elektromotorisch, mittels einer bekannten Zentralverriegelung bzw. eines Zentralverriegelungsantriebs entriegelbar und verriegelbar. Bei einer Ausführung als Elektroschloß, was insbesondere bei den Kraftfahrzeug-Türschlössern 3 der Kraftfahrzeugseitentüren 4 vorgesehen ist, weist jedes Kraftfahrzeugschloß 3 zusätzlich noch die Möglichkeit einer motorischen Öffnung, also des Aushebens einer nicht dargestellten Sperrklinke, mittels eines nicht dargestellten Öffnungsantriebs auf. Das Entriegeln und Verriegeln kann dementsprechend auch nur schaltungstechnisch erfolgen.Preferably, each motor vehicle door lock 3 is motorized, in particular electromotive, by means of a known central locking or a Central locking drive unlockable and lockable. In one execution as an electric lock, which is particularly true in the motor vehicle door locks 3 of the vehicle side doors 4 is provided, each motor vehicle lock 3 additionally the possibility of a motorized opening, So the lifting of a pawl, not shown, by means of a not illustrated opening drive on. The unlocking and locking can Accordingly, only circuit technology.

Das Kraftfahrzeug-Türschließsystem 2 ist vorzugsweise mit einer "Passive Entry"-Funktion ausgestattet. Unter "Passive Entry"-Funktion ist hier insbesondere eine automatische, kraftfahrzeugseitige Datenabfrage bzw. Identifikation eines bedienerseitigen Datenträgers, Transponders 5 o. dgl. zu verstehen, um festzustellen, ob eine sich dem Kraftfahrzeug 1 annähernde Bedienungsperson oder eine Bedienungsperson, die bereits im Begriff ist, das Kraftfahrzeug 1 bzw. eine Kraftfahrzeugtür 4 zu öffnen, zum Zutritt berechtigt ist. Dies wird meist von einer entsprechenden Elektronik des Kraftfahrzeugs 1 überprüft. Bei entsprechender Berechtigung der Bedienungsperson erfolgt üblicherweise ein automatisches Entriegeln entweder einer Zentralverriegelung, des Türschlosses 3 der Fahrertür 4 oder zumindest des Türschlosses 3 der Tür 4, dem sich die Bedienungsperson nähert oder deren Türaußengriff die Bedienungsperson berührt bzw. betätigt.The motor vehicle door locking system 2 is preferably provided with a "Passive Feature "Under Entry" function is here in particular an automatic, vehicle-side data query or identification an operator-side data carrier, transponders 5 o. The like. Understand to determine whether an approaching the motor vehicle 1 operator or an operator who is already in the process of that To open motor vehicle 1 and a motor vehicle door 4, entitled to access is. This is usually done by a corresponding electronics of the motor vehicle 1 checked. With appropriate authorization of the operator usually an automatic unlocking of either a central locking, the door lock 3 of the driver's door 4 or at least the door lock 3 of the door 4, which the operator approaches or the outside door handle the operator touches or operates.

Beim Darstellungsbeispiel umfaßt das Kraftfahrzeug-Türschließsystem 2 einen insbesondere als "Passive Entry"-Chipkarte ausgebildeten oder sonstigen Datenträger bzw. Transponder 5, der von einer nicht dargestellten Bedienungsperson mitgeführt wird und als "elektronischer Schlüssel" dient. So kann eine kraftfahrzeugseitig ausgelöste Datenabfrage bzw. Identifizierung des Datenträgers bzw. Transponders 5, wie durch Signalwellen 6 angedeutet, durchgeführt und die Zugangsberechtigung der Bedienungsperson überprüft werden. Bei entsprechender Zugangsberechtigung erfolgt eine Entriegelung vorzugsweise aller Kraftfahrzeug-Türschlösser 3 mittels der nicht dargestellten Zentralverriegelung o. dgl.In the illustrated example, the motor vehicle door closing system 2 includes a in particular as a "Passive Entry" chip card formed or other media or transponder 5, by an operator, not shown is carried along and serves as an "electronic key". So can one Motor vehicle side triggered data query or identification of the disk or transponders 5, as indicated by signal waves 6 performed and the access authorization of the operator to be checked. With appropriate access authorization is unlocked preferably all motor vehicle door locks 3 by means not shown Central locking o.

Dem Kraftfahrzeug-Türschloß 3 der Fahrertür und dem Haubenschloß sind bedarfsweise jeweils ein Schließzylinder 7 für eine Betätigung mit einem mechanischen Schlüssel 8 zugeordnet. So kann das Kraftfahrzeug-Türschloß 3 der Fahrertür mit dem Schlüssel 8 mechanisch im Notfall betätigt bzw. entriegelt und geöffnet werden. Eine entsprechende Notentriegelung bzw. Notöffnung kann bedarfsweise auch für die Kraftfahrzeug-Türschlösser 3 der anderen Türen 4 vorgesehen sein.The motor vehicle door lock 3 of the driver's door and the hood lock are If necessary, in each case a lock cylinder 7 for actuation with a mechanical Key 8 assigned. Thus, the motor vehicle door lock 3 the driver's door with the key 8 mechanically actuated or unlocked in an emergency and be opened. A corresponding emergency release or emergency opening If necessary, for the motor vehicle door locks 3 of be provided other doors 4.

Zumindest jedem Kraftfahrzeugtürschloß 3 der Kraftfahrzeugseitentüren 4 ist eine Türaußengriffanordnung 9 zugeordnet, wie in Fig. 1 angedeutet. Fig. 2 zeigt die Türaußengriffanordnung 9 der Fahrertür mit integriertem Schließzylinder 7, der beispielsweise in einem Führungselement 11 gelagert ist. Jedoch können der Schließzylinder 7 und dessen Führungselement 11 bedarfsweise auch entfallen.At least each vehicle door lock 3 of the vehicle side doors 4 is an outside door handle assembly 9 assigned, as indicated in Fig. 1. Fig. 2 shows the outside door handle assembly 9 of the driver's door with integrated lock cylinder 7, which is mounted for example in a guide element 11. however can the lock cylinder 7 and its guide element 11, if necessary also omitted.

Die Türaußengriffanordnung 9 weist ferner einen Türaußengriff 10 auf, der feststehend ausgebildet ist und keine beweglichen Teile, wie einen beweglichen Betätigungs- bzw. Öffnungshebel o. dgl., aufweist. Dargestellt ist ein Bügelgriff, als eine mögliche Alternative kann auch ein Klappengriff eingesetzt werden.The outside door handle assembly 9 further includes an outside door handle 10, the is stationary and no moving parts, such as a movable Actuating or opening lever o. The like., Has. Shown is a Bow handle, as a possible alternative, a flap handle can be used become.

Die Türaußengriffanordnung 9 kann außerdem einen benachbarten Türbereich, der in Fig. 2 nicht dargestellt ist, umfassen, insbesondere wenn die Türaußengriffanordnung 9 zusammen mit diesem benachbarten Türbereich als Baueinheit in die zugeordnete Kraftfahrzeugtür 4 eingesetzt wird. Dies ist aufgrund des feststehenden Türaußengriffs 10 jedoch nicht unbedingt erforderlich. Vielmehr kann eine sogenannte Rückplatte der Türaußengriffanordnung 9 auch entfallen und statt dessen der Eingreifraum unmittelbar von der zugeordneten Kraftfahrzeugtür 4 einerseits und dem Türaußengriff 10 andererseits definiert bzw. gebildet sein.The outside door handle assembly 9 may also include an adjacent door area, which is not shown in Fig. 2, include, in particular when the outside door handle assembly 9 together with this adjacent door area as Assembly is used in the associated motor vehicle door 4. This is due to the fixed outside door handle 10 but not essential. Rather, a so-called back plate of the outside door handle assembly 9 also omitted and instead the intervention space directly from the associated motor vehicle door 4 on the one hand and the outside door handle 10 on the other be defined or formed.

Fig. 3 zeigt in schematischer Draufsicht eine Türaußengriffanordnung 9, die beispielsweise wie bezüglich Fig. 2 beschrieben mit, aber auch ohne Schließzylinder 7 ausgebildet sein kann.Fig. 3 shows a schematic plan view of an outside door handle assembly 9, the For example, as described with respect to FIG. 2 with, but also without lock cylinder 7 may be formed.

Bei der Türaußengriffanordnung 9 ist, wie in Fig. 3 angedeutet, ein Sensor 12 dem Türaußengriff 10 zugeordnet. Insbesondere ist hierbei ein verformungs-, kraft- und/oder drucksensitives Sensorelement 13 am Türaußengriff 10 angeordnet, wie in Fig. 3 gezeigt, oder in sonstiger Weise mit diesem verbunden oder in diesen integriert.When the outside door handle assembly 9, as indicated in Fig. 3, a sensor 12th assigned to the outside door handle 10. In particular, here is a deformation, force and / or pressure-sensitive sensor element 13 is arranged on the outside door handle 10, as shown in Fig. 3, or otherwise connected thereto or integrated into it.

Bei dem Sensorelement 13 handelt es sich insbesondere um ein Piezoelement im bereits genannten Sinne. Hierbei handelt es sich um einen Piezokristall, der bei Verformung durch Ladungsverschiebung eine elektrische Spannung, insbesondere an seinen Seiten senkrecht zur Verformungsrichtung, erzeugt. Vorzugsweise erfolgt eine kapazitive Auswertung, also Erfassung der Ladungsverschiebung bzw. Kapazitätsänderungen bei Verformung des Piezoelements. Jedoch ist beispielsweise auch eine resistive Auswertung möglich. The sensor element 13 is in particular a piezoelectric element in the sense already mentioned. This is a piezocrystal, the upon deformation by charge displacement an electrical voltage, in particular on its sides perpendicular to the deformation direction generated. Preferably, a capacitive evaluation, ie detection of the charge shift or capacity changes during deformation of the piezoelectric element. However, for example, a resistive evaluation is possible.

Der Sensor 12 bzw. das Sensorelement 13 hat einen minimalen oder, insbesondere bei Verwendung eines Piezoelements, gar keinen Energiebedarf, so daß ein allenfalls sehr geringer Energiebedarf für die insbesondere fortlaufend wiederholt ausgeführte Auswertung zur Überprüfung, ob eine Betätigung des Türaußengriffs 10 erfaßt worden ist, besteht.The sensor 12 or the sensor element 13 has a minimum or, in particular when using a piezoelectric element, no energy requirement, so that at most a very low energy requirement for the particular ongoing repeated evaluation to check if an actuation the outside door handle 10 has been detected exists.

Der Türaußengriff 10 umgrenzt bzw. definiert einen Eingreifraum 14 für eine nicht dargestellte Hand einer Bedienungsperson. Unter "Eingreifraum" ist hier dementsprechend insbesondere der Raum zu verstehen, in den eine nicht dargestellte Hand einer Bedienungsperson üblicherweise zur Betätigung des Türaußengriffs 10 eingreift.The outside door handle 10 defines or defines an engagement space 14 for a not shown hand of an operator. Under "intervention space" is Here, accordingly, in particular to understand the space in which a not illustrated hand of an operator usually for actuating the Outside door handle 10 engages.

Das Sensorelement 13 ist beim Darstellungsbeispiel gem. Fig. 3 auf der dem Eingreifraum 14 zugewandten Innenwandung bzw. Innenseite 15 des Türaußengriffs 10 angeordnet. Insbesondere überdeckt das Sensorelement 13 die Innenseite 15 und/oder angrenzende Bereiche des Türaußengriffs 10 großflächig, vorzugsweise im wesentlichen vollständig.The sensor element 13 is gem. Fig. 3 on the Eingreifraum 14 facing inner wall or inside 15 of the outside door handle 10 arranged. In particular, the sensor element 13 covers the Inside 15 and / or adjacent areas of the outside door handle 10 over a large area, preferably substantially complete.

Vorzugsweise ist das Sensorelement 13 jedoch in den Türaußengriff 10 integriert, insbesondere im Inneren angeordnet.Preferably, however, the sensor element 13 is integrated into the exterior door handle 10, especially arranged inside.

Der Türaußengriff 10 ist - zumindest bereichsweise - elastisch verformbar ausgebildet. Der Sensor 12 kann eine durch eine Betätigung hervorgerufene Verformung des Türaußengriffs 10 detektieren, so daß die Betätigung erfaßbar ist.The outside door handle 10 is - at least partially - elastically deformable educated. The sensor 12 may be one caused by an operation Detecting deformation of the outside door handle 10, so that the operation can be detected is.

Der Türaußengriff 10 ist feststehend ausgebildet, d.h. starr mit der zugeordneten Kraftfahrzeugtür 4 bzw. dem zugeordneten Türbereich 16 oder sonstigen Teilen der Türaußengriffanordnung 9 verbunden.The outside door handle 10 is fixed, i. rigid with the associated Motor vehicle door 4 or the associated door area 16 or other Parts of the outside door handle assembly 9 connected.

Vorzugsweise ist dem Sensor 12 eine Auswerteeinheit bzw. -elektronik 17 zugeordnet, wie in Fig. 3 angedeutet, die insbesondere in die Türaußengriffanordnung 9 bzw. den Türaußengriff 10 zumindest teilweise, insbesondere vollständig integriert ist. Preferably, the sensor 12 is an evaluation unit or electronics 17 associated, as indicated in Fig. 3, in particular in the outside door handle assembly 9 and the outside door handle 10 at least partially, in particular is fully integrated.

Alternativ oder zusätzlich kann die Auswerteelektronik 17 in eine zugeordnete Kraftfahrzeugtür 4 oder eine zentrale Kraftfahrzeug- bzw. Steuerelektronik 18 des Kraftfahrzeugs 1, die in Fig. 1 angedeutet ist, zumindest teilweise integriert sein.Alternatively or additionally, the transmitter 17 in an associated Motor vehicle door 4 or a central motor vehicle or control electronics 18 of the motor vehicle 1, which is indicated in Fig. 1, at least partially be integrated.

Wenn eine nicht dargestellte Hand einer Bedienungsperson den Türaußengriff 10 erfaßt und verformt (betätigt), führt dies zu einer entsprechenden Änderung von Meßsignalen und/oder Kennwerten des Sensors 12 bzw. des Sensorelements 13, die als Berührung und/oder Betätigung des Türaußengriffs 10 ausgewertet werden können. Insbesondere wird ein entsprechendes Signal von der Auswerteelektronik 17, beispielsweise an die zentrale Kraftfahrzeugelektronik 18, ausgegeben.When an unillustrated hand of an operator grips the outside door handle 10 detected and deformed (pressed), this leads to a corresponding change of measurement signals and / or characteristic values of the sensor 12 or the Sensor element 13, as the touch and / or operation of the outside door handle 10 can be evaluated. In particular, a corresponding Signal from the transmitter 17, for example, to the central motor vehicle electronics 18, issued.

Gemäß einer bevorzugten Weiterbildung sind der Sensor 12 und die optional vorgesehene Auswerteelektronik 17 derart ausgebildet, daß zwischen einem anfänglichen Berühren und einem tatsächlichen Betätigen des Türaußengriffs 10 durch eine nicht dargestellte Hand einer Bedienungsperson differenziert werden kann. Insbesondere wird hierzu die Stärke der Meßsignaländerung beim Sensor 12, also die Stärke der Verformung des Türaußengriffs 10 erfaßt und ausgewertet. Hierbei kann auch der zeitliche Anstieg der Verformung und/oder der zeitliche Abstand zwischen dem Überschreiten gewisser Ansprechschwellen berücksichtigt werden, um beispielsweise das übliche Ansteigen der Meßwerte bzw. Ändern der Meßwerte beim normalen Ablauf des Berührens und anschließenden Betätigen des Türaußengriffs 10 zu detektieren.According to a preferred embodiment, the sensor 12 and the optional provided evaluation electronics 17 designed such that between a initial touching and actually operating the outside door handle 10 differentiated by an unillustrated hand of an operator can be. In particular, this is the strength of Meßsignaländerung the sensor 12, so the strength of the deformation of the outside door handle 10 detected and evaluated. This can also increase the time of deformation and / or the time interval between exceeding certain thresholds be considered, for example, the usual increase the measured values or changing the measured values in the normal course of the Touching and then pressing the outside door handle 10 to detect.

Nachfolgend wird unter Bezugnahme auf die schematischen Diagramme von Fig. 4 eine bevorzugte Erfassung bzw. Auswertung einer Betätigung des Türaußengriffs 10 - also die Betätigungssensierung - näher erläutert.Hereinafter, referring to the schematic diagrams of FIG 4 shows a preferred detection or evaluation of an actuation of the Outside door handle 10 - so the Betätigungssensierung - explained in more detail.

Fig. 4 a) zeigt beispielhaft einen Signalverlauf des vom Sensor 12 bzw. Sensorelement 13 ausgegebenen bzw. bereitgestellten Signals. Wenn eine nicht dargestellte Bedienungsperson den Türaußengriff 10 betätigt - also zieht - wird dies vom Sensor 12 bzw. Sensorelement 13 registriert und ein erstes Signal A ausgegeben. Bei der vorzugsweise vorgesehenen Verwendung eines Piezoelements als Sensorelement 13 oder eines sonstigen, nur auf Änderungen reagierenden bzw. sensitiven Sensorelements ergibt sich nur ein kurzzeitiges erstes Signal A, wie dargestellt.Fig. 4 a) shows an example of a waveform of the sensor 12 and the sensor element 13 output or provided signal. If not one shown operator actuates the outside door handle 10 - so pulls - This is registered by the sensor 12 or sensor element 13 and a first signal A issued. In the preferably intended use of a Piezoelectric element as a sensor element 13 or another, only to changes Reactive or sensitive sensor element results only a short-term first signal A, as shown.

Beim Loslassen des Türaußengriffs 10 wird ein zweites Signal B ausgegeben, wie ebenfalls in Fig. 4 a) angedeutet. Auch das zweite Signal B liegt nur relativ kurzzeitig an.When releasing the outside door handle 10, a second signal B is output, as also indicated in Fig. 4 a). Also the second signal B is only relative for a short time.

Aus dem ersten Signal A und dem zweiten Signal B wird der Beginn und das Ende der Betätigung des Türaußengriffs 10 abgeleitet. Dementsprechend wird in Abhängigkeit von dem Erfassen des ersten Signals A und dem Erfassen des zweiten Signals B ein Betätigungssignal C bestimmt, wie beispielhaft bzw. schematisch in Fig. 4 b) dargestellt. In Abhängigkeit von dem Betätigungssignal C wird das dem betätigten Türaußengriff 10 zugeordnete Kraftfahrzeug-Türschloß 3 motorisch geöffnet, sofern das Kraftfahrzeug-Türschloß 3 bereits entriegelt ist und/oder eine entsprechende Zugangsberechtigung vorliegt bzw. von der Steuerelektronik 18 detektiert wird.From the first signal A and the second signal B, the beginning and the End of the operation of the outside door handle 10 derived. Accordingly becomes dependent on the detection of the first signal A and the detection of the second signal B determines an actuation signal C, as exemplified or shown schematically in Fig. 4 b). In response to the actuation signal C is the motor vehicle door lock associated with the operated outside door handle 10 3 motor open, provided the motor vehicle door lock 3 is already unlocked and / or a corresponding access authorization is present or detected by the control electronics 18.

Auch die Entriegelung des Kraftfahrzeug-Türschlosses 3 kann bereits durch das Betätigen des Türaußengriffes 10 geschaltet werden. Man kann z. B. vorsehen, daß durch kurzes Ziehen am Türaußengriff die Entriegelung des Kraftfahrzeug-Türschlosses 3 erfolgt und durch längeres Ziehen oder durch zweifaches Ziehen ein motorisches Öffnen des Kraftfahrzeug-Türschlosses 3 erfolgt. Vorauszusetzen ist in jedem Fall, daß eine entsprechende Zugangsberechtigung vorliegt.The unlocking of the motor vehicle door lock 3 can already by the operation of the outside door handle 10 are switched. You can z. B. Provide that by briefly pulling the outside door handle unlocking the Motor vehicle door lock 3 takes place and by prolonged pulling or through Pulling twice a motorized opening of the motor vehicle door lock 3 he follows. In each case, it is necessary to have an appropriate access authorization is present.

Die vorschlagsgemäße Auswertung und Bereitstellung des Betätigungssignals C kann insbesondere durch die Auswerteelektronik 17 erfolgen. Jedoch kann die Auswertung wahlweise auch in der Steuerelektronik 18 oder in einer sonstigen Einrichtung des Kraftfahrzeugs 1 erfolgen.The proposed evaluation and provision of the actuation signal C can be done in particular by the transmitter 17. however the evaluation can optionally also in the control electronics 18 or take place in another device of the motor vehicle 1.

Je nach Ausgestaltung ist es nicht erforderlich, daß das Betätigungssignal C erzeugt bzw. ausgegeben wird. Vielmehr kann das Betätigungssignal C auch als logischer Zustand der Steuerung, insbesondere der Steuerelektronik 18 o. dgl., verstanden werden. In Abhängigkeit von diesem logischen Zustand wird das zugeordnete Kraftahrzeug-Türschloß 3, wie bereits erläutert, entriegelt und verriegelt, geöffnet und geschlossen. Depending on the configuration, it is not necessary that the actuating signal C is generated or output. Rather, the actuating signal C can also as a logical state of the controller, in particular the control electronics 18 o. Like. Be understood. Depending on this logical state the associated motor vehicle door lock 3, as already explained, unlocked and locked, opened and closed.

Das Öffnen des Kraftfahrzeug-Türschlosses 3 erfolgt insbesondere dadurch, daß eine nicht dargestellte Sperrklinke des Kraftfahrzeug-Türschlosses 3 während des Öffnungszustandes ausgehoben bzw. in einen nicht sperrenden Zustand gebracht bzw. bewegt wird.The opening of the motor vehicle door lock 3 takes place in particular by that a pawl, not shown, of the motor vehicle door lock. 3 dug during the opening state or in a non-blocking Condition is brought or moved.

Beim Darstellungsbeispiel weisen das erste Signal A und das zweite Signal B entgegengesetzte Polaritäten bzw. entgegengesetzte zeitliche Verläufe auf. Dies erleichtert die Detektion. Vorteilhafterweise tritt dieses Verhalten gerade bei dem vorzugsweise eingesetzten Piezoelement und kapazitiver Auswertung auf.In the illustrated example, the first signal A and the second signal B opposite polarities or opposite temporal courses. This facilitates the detection. Advantageously, this behavior just happens in the preferably used piezoelectric element and capacitive evaluation on.

Die Detektion kann beispielsweise dadurch erfolgen, daß das Überschreiten eines gewissen (positiven oder negativen) Schwellwerts einer (positiven oder negativen) Änderungsgeschwindigkeit - also zeitlichen Ableitung - und/oder eines Integralwerts o. dgl. bei dem vom Sensor 12 bzw. Sensorelement 13 bereitgestellten Signal erfaßt und als erstes Signal A oder zweites Signal B ausgewertet wird. Selbstverständlich sind hier auch andere geeignete Erfassungskriterien bzw. -algorithmen einsetzbar.The detection can take place, for example, by exceeding the limit a certain (positive or negative) threshold value of a (positive or negative) negative) rate of change - ie time derivative - and / or an integral value o. The like. When the sensor 12 or sensor element 13 signal detected and as the first signal A or second signal B. is evaluated. Of course, here are other suitable detection criteria or algorithms used.

Die vorschlagsgemäße Betätigungssensierung ist nicht darauf beschränkt, daß das erste Signal A und das zweite Signal B entgegengesetzte Polaritäten bzw. zeitliche Verläufe aufweisen. Dies ist zwar vorteilhaft, jedoch bei entsprechenden Erfassungskriterien nicht erforderlich.The proposed actuation sensing is not limited to the first signal A and the second signal B have opposite polarities or have temporal courses. This is advantageous, but with appropriate Entry criteria not required.

Des weiteren kann die vorschlagsgemäße Betätigungssensierung auch dann erfolgen, wenn der Sensor 12 bzw. das Sensorelement 13 ein Signal bereitstellt, das beispielsweise während der gesamten Dauer einer Betätigung des Türaußengriffs 10 - ggf. mit gewissen Schwankungen - anliegt. Dies ist beispielsweise bei einem Sensor 12 bzw. Sensorelement 13 der Fall, bei dem das Sensorsignal proportional zur einwirkenden Kraft bzw. zum einwirkenden Druck ist. Das erste Signal A kann dann beispielsweise als Flanke - starker zeitlicher Anstieg - des Sensorsignals und das zweite Signal B als entgegengesetzte Flanke - starker zeitlicher Abfall - des Sensorsignals detektiert werden. Furthermore, the proposed operation sensing can also be occur when the sensor 12 or the sensor element 13 provides a signal, for example, during the entire duration of an operation of the Outside door handle 10 - possibly with certain fluctuations - is applied. This is for example in the case of a sensor 12 or sensor element 13, the case in which the Sensor signal proportional to the applied force or acting Pressure is. The first signal A can then, for example, as a flank - stronger time increase - of the sensor signal and the second signal B as opposite Edge - strong temporal drop - the sensor signal are detected.

Ergänzend ist darauf hinzuweisen, daß die Betätigungssensierung auch zur Steuerung sonstiger Kraftfahrzeugfunktionen und zur Aktivierung sonstiger Kraftfahrzeugsteuerungen eingesetzt werden kann. Vorzugsweise werden hierzu von der Auswerteelektronik 17 oder einer sonstigen Elektronik, wie der Steuerelektronik 18, entsprechende Steuersignale - wie das Betätigungssignal C - ausgegeben.In addition, it should be noted that the Betätigungssensierung also for Control of other vehicle functions and to activate others Motor vehicle controls can be used. Preferably this from the transmitter 17 or other electronics, such as the control electronics 18, corresponding control signals - such as the actuation signal C - issued.

Bisher wurde primär nur die Erfassung einer Berührung bzw. Betätigung des Türaußengriffs 10 angesprochen. Bei einer solchen, üblichen Berührung bzw. Betätigung des Türaußengriffs 10 wird gewöhnlich eine Zugbelastung, wie durch Pfeil 19 in Fig. 3 und Fig. 6 bis 10 angedeutet, auf den Türaußengriff 10 ausgeübt. Die Berührung des Türaußengriffs 10 erfolgt also zumindest im wesentlichen auf der dem Eingreifraum 14 zugewandten Innenseite 15 des Türaußengriffs 10. Die Betätigung bzw. Zugbelastung 19 ist entsprechend primär von der zugeordneten Kraftfahrzeugtür 4 bzw. dem zugeordneten Türbereich 16 weggerichtet.So far, only the detection of a touch or actuation of the primary Door outside handle 10 addressed. In such, usual contact or Operation of the outside door handle 10 usually becomes a tensile load, such as indicated by arrow 19 in Fig. 3 and Fig. 6 to 10, on the outside door handle 10th exercised. The touch of the outside door handle 10 thus takes place at least substantially on the engagement space 14 facing inside 15 of the outside door handle 10. The operation or tensile load 19 is correspondingly primary from the associated motor vehicle door 4 or the associated door area 16 directed away.

Ein Aspekt liegt darin, daß - insbesondere zusätzlich - eine Druckbelastung des Türaußengriffs 10 - im wesentlichen wie durch Pfeil 20 angedeutet - erfaßbar ist. Insbesondere ist ein Drücken, beispielsweise einer nicht dargestellten Hand einer Bedienungsperson, auf den Türaußengriff 10 in einem vorzugsweisen markierten Abschnitt 21 auf der Außenseite 22 oder einem sonstigen geeigneten Bereich des Türaußengriffs 10 erfaßbar. Diese Erfassung einer Druckbelastung 20 kann zusätzlich oder alternativ zur Erfassung einer Zugbelastung 19 erfolgen.One aspect is that - especially in addition - a pressure load the outside door handle 10 - substantially as indicated by arrow 20 - detectable is. In particular, a pressing, for example, a not shown Hand of an operator, on the outside door handle 10 in a preferential manner marked portion 21 on the outside 22 or any other suitable area of the outside door handle 10 detectable. This capture a pressure load 20 may additionally or alternatively for detecting a Tensile load 19 done.

Insbesondere kann die Erfassung einer Druckbelastung 20 durch eine entsprechende Auswertung der bereits zur Erfassung einer Zugbelastung 19 eingesetzten Signale A und B, wie in Fig. 5 angedeutet, erfolgen. Wenn zunächst das zweite Signal B auftritt und danach - insbesondere innerhalb eines vorbestimmten zeitlichen Fensters bzw. Intervalls - das erste Signal A auftritt, wie in Fig. 5 a) angedeutet, kann dies als Schließsignal D gemäß Fig. 5 b) ausgewertet werden. Das Schließsignal D kann jedoch auch erst nach Detektion des ersten Signals A innerhalb eines nicht dargestellten zeitlichen Fensters erzeugt bzw. ausgegeben werden, wie im Fall gemäß Fig. 5 c). Fig. 4 macht im Zusammenhang mit Fig. 5 die komplette Signalgenerierung deutlich. Die Signalauswertung in der Steuerelektronik führt zu den dann gewünschten Steuerungsvarianten.In particular, the detection of a pressure load 20 by a corresponding Evaluation of the already to detect a tensile load 19 used signals A and B, as indicated in Fig. 5, take place. If first, the second signal B occurs and then - especially within a predetermined temporal window or interval - the first signal A. occurs, as indicated in Fig. 5 a), this can as the closing signal D of FIG. 5th b) are evaluated. However, the closing signal D can only after detection of the first signal A within a time not shown Window generated or output, as in the case of FIG. 5 c). Fig. 4 makes in connection with Fig. 5 the complete signal generation clearly. The signal evaluation in the control electronics leads to the then desired Control variants.

Jedoch kann, wie bereits erläutert, die Erfassung einer - für eine Funktionsausführung ausreichenden, ggf. eine vorbestimmte Ansprechschwelle überschreitenden - Druckbelastung 20 des Türaußengriffs 10 bzw. dessen vorzugsweise besonders sensitiven Abschnitts 21 auch auf andere Weise als durch Erfassung und Auswertung der Signale A, B, beispielsweise mittels des Sensors 12 oder eines zusätzlichen Sensors, in üblicher Weise erfolgen.However, as already explained, the detection of a - for a function execution sufficient, possibly exceeding a predetermined threshold - Compressive load 20 of the outside door handle 10 or preferably particularly sensitive section 21 in other ways than by detection and evaluation of the signals A, B, for example by means of Sensors 12 or an additional sensor, done in the usual way.

Bei Feststellung einer Druckbelastung 20 bzw. Vorliegen des Schließsignals D ist vorgesehen, daß das zugeordnete Kraftfahrzeug-Türschloß 3 oder insbesondere alle Kraftfahrzeug-Türschlösser 3 verriegelt werden, also insbesondere eine nicht dargestellte Zentralverriegelung o. dgl. aktiviert wird. Bei Ausführung der Kraftfahrzeug-Türschlösser 3 als motorisch öffenbare Schlösser bzw. Elektroschlösser kann die Verriegelung bedarfsweise auch nur schaltungstechnisch erfolgen.Upon detection of a pressure load 20 or presence of the closing signal D is provided that the associated motor vehicle door lock 3 or in particular all motor vehicle door locks 3 are locked, so in particular an unillustrated central locking o. The like. Is activated. at Execution of the motor vehicle door locks 3 as a motor openable Locks or electric locks can lock as needed only by circuitry.

Vorzugsweise ist die Türaußengriffanordnung 9 bzw. der Türaußengriff 10 derart ausgebildet, daß der Sensor 12 sowohl eine Zugbelastung 19 als auch eine Druckbelastung 20 sensieren kann, insgesamt also nur ein Sensor 12 erforderlich ist. Bedarfsweise können jedoch auch mehrere Sensoren 12 und/oder Sensorelemente 13 unter Redundanzgesichtspunkten und/oder zur selektiven Erfassung einer Zugbelastung 19 oder einer Druckbelastung 20 vorgesehen sein.Preferably, the outside door handle assembly 9 and the outside door handle 10 designed so that the sensor 12 both a tensile load 19 and can sense a pressure load 20, so a total of only one sensor 12 required is. If necessary, however, several sensors 12 and / or sensor elements 13 under redundancy aspects and / or for selective detection of a tensile load 19 or a compressive load 20 be provided.

Bei der Ausführungsform gemäß Fig. 3 ist, sofern eine Erfassung einer Druckbelastung 20 überhaupt vorgesehen ist, der Türaußengriff 10 ausreichend elastisch verformbar ausgebildet, so daß bei einer Druckbelastung 20 die entsprechende Verformung des Sensors 12 bzw. dessen Sensorelements 13 erfaßbar ist.In the embodiment of FIG. 3, if a detection of a Compressive load 20 is provided at all, the outside door handle 10 sufficient formed elastically deformable, so that at a pressure load 20 the corresponding deformation of the sensor 12 or its sensor element 13 is detectable.

Bei der Ausführungsform gemäß Fig. 6 ist der Türaußengriff 10 - wie bei allen hier dargestellten und beschriebenen Ausführungsalternativen - vorzugsweise zumindest im wesentlichen feststehend ausgebildet. Der Türaußengriff 10 weist also - auch bei mehrteiliger Ausführung - keine beweglichen Teile im Sinne eines Schalters, Tasters o. dgl. auf. Dies ermöglicht außerdem einen vereinfachten Aufbau der Türaußengriffanordnung 9, da eine bewegliche Lagerung von Teilen o. dgl. entfällt.In the embodiment of FIG. 6, the outside door handle 10 - as in all illustrated and described alternative embodiments - preferably at least substantially fixed. The outside door handle 10 thus has - even with multi-part design - no moving parts in the sense of a switch, button o. The like. On. This also allows one simplified construction of the outside door handle assembly 9, as a mobile Storage of parts o. The like. Eliminated.

Der Türaußengriff 10 oder zumindest Teile bzw. Abschnitte davon ist bzw. sind derart elastisch verformbar ausgebildet, daß insbesondere im Falle der Ausführungsformen gem. Fig. 6 bis 10 sowohl eine Zugbelastung 19 als auch eine Druckbelastung 20 erfaßbar sind.The outside door handle 10 or at least parts or portions thereof is or are formed elastically deformable, that in particular in the case of Embodiments gem. Fig. 6 to 10 both a tensile load 19 and a pressure load 20 can be detected.

Bei der Ausführungsform gem. Fig. 6 ist der Türaußengriff 10 mehrteilig ausgeführt, hier aus zwei Türaußengriffteilen 10' gebildet.In the embodiment according to. 6, the outside door handle 10 is designed in several parts, here two outside door handle parts 10 'formed.

Im Inneren des Türaußengriffs 10 ist ein vorzugsweise streifenförmiger Träger 23 angeordnet, dem der Sensor 12 bzw. dessen Sensorelement 13 zugeordnet ist. Insbesondere ist als Sensorelement 13 ein Piezoelement mit dem Träger 23 verbunden und ggf. auf diesem angeordnet. Beispielsweise kann der Träger 23 eine entsprechende Ausnehmung aufweisen, so daß auf das Sensorelement 13 von beiden Seiten eingewirkt werden kann, oder auf beiden Seiten des Trägers 23 ein Sensorelement 13 angeordnet sein.Inside the outside door handle 10 is a preferably strip-shaped carrier 23, which is assigned to the sensor 12 and its sensor element 13 is. In particular, the sensor element 13 is a piezoelement with the carrier 23 connected and possibly arranged on this. For example, the carrier 23 have a corresponding recess, so that the sensor element 13 can be acted on both sides, or on both sides the carrier 23, a sensor element 13 may be arranged.

Der Träger 23 ist vorzugsweise nur in gegenüberliegenden Endbereichen 24 fest mit dem Türaußengriff 10 verbunden und erstreckt sich ansonsten zumindest im wesentlichen innerhalb eines im Türaußengriff 10 gebildeten Hohlraums 25. Der Träger 23 ist streifenförmig ausgebildet und erstreckt sich vorzugsweise etwa über die gesamte Länge des Türaußengriffs 10 oder zumindest einen wesentlichen Teil davon. Der Träger 23 ist vorzugsweise starr, zumindest im Verhältnis zum sonstigen Türaußengriff 10 bzw. dessen Teilen 10' ausgebildet. Er besteht vorzugsweise aus Metall, er kann jedoch auch aus Kunststoff hergestellt sein.The carrier 23 is preferably only in opposite end regions 24 firmly connected to the outside door handle 10 and otherwise extends at least essentially within a door outside handle 10 formed Cavity 25. The carrier 23 is strip-shaped and extends preferably approximately over the entire length of the outside door handle 10 or at least a substantial part of it. The carrier 23 is preferably rigid, at least in relation to the other outside door handle 10 or its parts 10 'formed. It is preferably made of metal, but it can also be made Be made of plastic.

Ein sehr gutes Ansprechverhalten wird insbesondere dadurch erreicht, daß entsprechend der Prinzipskizze gemäß Fig. 7 elastisch verformbare bzw. eindrückbare Seitenwandungen 26 des Hohlraums 25 bzw. des Türaußengriffs 10 direkt oder über Vorsprünge 27 auf den Sensor 12 bzw. dessen Sensorelement 13 bei entsprechender Belastung des Türaußengriffs 10 einwirken können. Insbesondere führt eine sehr kleinflächige - im Grenzfall im wesentlichen punktförmige - Krafteinleitung zu einem besonders guten Ansprechverhalten gerade bei Verwendung eines Piezoelements als Sensorelement 13. Jedoch kann beispielsweise auch ein Dehnungsmeßstreifen o. dgl. als Sensorelement 13 bei Bedarf eingesetzt werden.A very good response is achieved in particular by the fact that according to the schematic diagram of FIG. 7 elastically deformable or depressible Side walls 26 of the cavity 25 and the outside door handle 10 directly or via protrusions 27 on the sensor 12 and its sensor element 13 with a corresponding load on the outside door handle 10 act can. In particular, a very small area leads - in the limit, essentially punctiform - force introduction to a particularly good response especially when using a piezoelectric element as a sensor element 13th However, for example, a strain gauge o. The like. As a sensor element 13 can be used if necessary.

Vorzugsweise sind die Vorsprünge 27 halbkugelförmig, stiftartig, kegelstumpfförmig oder kegelförmig ausgebildet. So werden eine sehr kleinflächige Krafteinleitung und damit ein hoher Druck erreicht, was einem guten Ansprechverhalten zuträglich ist.Preferably, the projections 27 are hemispherical, pin-like, frusto-conical or cone-shaped. So be a very small area Force application and thus a high pressure achieved, which is a good Responsiveness is conducive.

Der voranstehend beschriebene Aufbau führt dazu, daß eine zumindest partielle Verformung des Türaußengriffs 10 bei hoher Ansprechempfindlichkeit erfaßbar ist, wobei zwischen einer Zugbelastung 19 und einer Druckbelastung 20 unterschieden werden kann.The structure described above causes an at least partial Deformation of the outside door handle 10 with high sensitivity can be detected, wherein between a tensile load 19 and a pressure load 20 can be distinguished.

Gemäß Fig. 7 kann der Sensor 12 bzw. das Sensorelement 13 auch zwischen zwei Abschnitten bzw. Teilen 23' des Trägers 23 angeordnet und gehalten sein. Jedoch ist auch ein sandwichartiger Aufbau mit durchgehendem Träger 23, wie bei der Darstellung gem. Fig. 6, möglich.According to FIG. 7, the sensor 12 or the sensor element 13 can also be between two sections or parts 23 'of the carrier 23 is arranged and held be. However, it is also a continuous-carrier sandwich type construction 23, as shown in the illustration. Fig. 6, possible.

Fig. 8 zeigt eine weitere, zu Fig. 6 und 7 sehr ähnliche Ausführungsvariante der Türaußengriffanordnung 9 bzw. des Türaußengriffs 10. Hier ist eine asymmetrische Anordnung des Sensors 12 bzw. dessen Sensorelements 13 vorgesehen. Es erfolgt keine unmittelbare Einwirkung der Seitenwandungen 26 bzw. der Vorsprünge 27 auf das Sensorelement 13, vielmehr erfolgt diese Einwirkung indirekt über den Träger 23. Insbesondere ist der Träger 23 nur an einem Endbereich 24 fest eingespannt und endet mit dem anderen Endbereich zwischen den Seitenwandungen 26 bzw. deren Vorsprüngen 27. Dementsprechend wirkt hier eine Verformung indirekt über den Träger 23 auf den Sensor 12 bzw. das Sensorelement. Insbesondere wird hier das Sensorelement 13 bei Verformung des Türaußengriffs 10 ggf. auf Biegung und/oder Streckung bzw. Stauchung beansprucht. Dies kann selbstverständlich auch bei der Ausführungsform gem. Fig. 6 und 7 der Fall sein. Entsprechend ist dann beispielsweise auch ein Dehnungsmeßstreifen o. dgl. als Sensorelement 13 einsetzbar. FIG. 8 shows a further embodiment variant which is very similar to FIGS. 6 and 7 the outside door handle assembly 9 and the outside door handle 10. Here is a asymmetrical arrangement of the sensor 12 or its sensor element 13 intended. There is no immediate action of the side walls 26 and the projections 27 on the sensor element 13, rather, this takes place Actuation indirectly via the carrier 23. In particular, the carrier 23 is only firmly clamped at one end portion 24 and ends with the other end portion between the side walls 26 and their projections 27th Accordingly, a deformation acts indirectly on the carrier 23 here the sensor 12 or the sensor element. In particular, here is the sensor element 13 at deformation of the outside door handle 10, if necessary, to bend and / or Stretching or compression claimed. This can of course also in the embodiment according to. FIGS. 6 and 7 will be the case. Corresponding is then, for example, a strain gauge o. The like. As a sensor element 13 can be used.

Fig. 9 zeigt eine weitere Ausführungsvariante. Hier weist der Sensor 12 mindestens eine Elektrodenanordnung 30 als Sensorelement 13 auf. Die Elektrodenanordnung 30 umfaßt beim Darstellungsbeispiel zwei Elektroden 31 und 32, die beispielsweise im Bereich gegenüberliegender Innenwandungen des Türaußengriffs 10 angeordnet sind. Insbesondere können die Elektroden 31, 32 durch Metallfolien auf den Innenseiten 28 der elastisch verformbaren bzw. eindrückbaren Seitenwandungen 26 gebildet sein. Vorzugsweise sind die Elektroden 31 und 32 derart angeordnet, daß eine Elektrode 31 der Außenseite 22 des Türaußengriffs 10 bzw. des Abschnitts 21 benachbart ist und die andere Elektrode 32 der Innenseite 15 des Türaußengriffs 10 bzw. zum Eingreifraum 14 benachbart ist. Insbesondere erstrecken sich die Elektroden 31, 32 quer zu der Richtung einer zu erfassenden Zugbelastung 19 bzw. Druckbelastung 20.Fig. 9 shows a further embodiment. Here, the sensor 12 at least an electrode assembly 30 as a sensor element 13. The electrode arrangement In the illustrated embodiment, FIG. 30 includes two electrodes 31 and 32, for example, in the area of opposite inner walls of the Outside door handle 10 are arranged. In particular, the electrodes 31, 32 by metal foils on the inner sides 28 of the elastically deformable or depressible side walls 26 may be formed. Preferably the electrodes 31 and 32 are arranged so that an electrode 31 of the outside 22 of the outside door handle 10 and the section 21 is adjacent and the other electrode 32 of the inside 15 of the outside door handle 10 and Intervention space 14 is adjacent. In particular, the electrodes extend 31, 32 transversely to the direction of a tensile load to be detected 19 or Pressure load 20.

Wenn der Türaußengriff 10 bzw. eine Seitenwandung 26 des Türaußengriffs 10 bei einer Zugbelastung 19 oder Druckbelastung 20 verformt wird, ändert sich der Abstand der Elektroden 31, 32. Dementsprechend erfolgt insbesondere eine Änderung der Kapazität. Die Elektrodenanordnung 30 bildet beim Darstellungsbeispiel also primär einen kapazitiven Sensor. Jedoch kann die Elektrodenanordnung 30 auch anders arbeiten bzw. ausgewertet werden. Beispielsweise können je nach Verformung des Türaußengriffs 10 auch andere elektrische Kenngrößen, wie Induktanz, Widerstand, Impedanz o. dgl. geändert und zur Erfassung einer Zug- oder Druckbelastung 19, 20 ausgewertet werden. Je nach Arbeitsweise und verwendetem Material mit entsprechenden, geeigneten, beispielsweise dielektrischen oder magnetischen Eigenschaften kann der Hohlraum 25 auch entfallen und beispielsweise durch einen kompressiblen, nicht dargestellten Bereich ersetzt sein.If the outside door handle 10 and a side wall 26 of the outside door handle 10 is deformed at a tensile load 19 or compressive load 20 changes the distance between the electrodes 31, 32. Accordingly, in particular a change in capacity. The electrode assembly 30 forms at Representation example so primarily a capacitive sensor. However, the Electrode assembly 30 also work differently or evaluated. For example, depending on the deformation of the outside door handle 10 and others electrical characteristics, such as inductance, resistance, impedance o. The like. changed and evaluated to detect a tensile or compressive load 19, 20 become. Depending on the method of operation and material used with appropriate, suitable, for example, dielectric or magnetic properties the cavity 25 may also be omitted and, for example, by be replaced a compressible, not shown area.

Im Gegensatz zur Verwendung eines Piezoelementes kann die Verwendung eines rein kapazitiven Sensors dazu führen, daß auch statische Kräfte erfaßt werden können. Eine auf den Türaußengriff 10 wirkende konstante Kraft generiert dann so lange ein Signal wie diese Kraft anliegt. Das hat den bereits im allgemeinen Teil der Beschreibung genannten Vorteil, daß man beispielsweise die Sperrklinke so lange angehoben halten kann, wie der Türaußengriff 10 gezogen wird. In contrast to the use of a piezoelectric element, the use a purely capacitive sensor cause static forces also detected can be. An acting on the outside door handle 10 constant force then generates a signal as long as this force is applied. That already has that in the general part of the description mentioned advantage that, for example the pawl can hold raised as long as the outside door handle 10 is pulled.

Beim Darstellungsbeispiel ist die Elektrodenanordnung 30 nicht zur Unterscheidung zwischen einer Zugbelastung 19 und einer Druckbelastung 20 geeignet. Zur Unterscheidung kann beispielsweise eine weitere, nicht dargestellte Elektrode vorgesehen sein. Alternativ oder zusätzlich können bei geeigneter Materialwahl und bei geeignetem Aufbau derart spezifische Änderungen elektrischer/magnetischer Kenngrößen erreicht werden, daß eine Unterscheidung zwischen Zugbelastung 19 und Druckbelastung 20 auch bei nur zwei Elektroden 31, 32 möglich ist.In the illustrated example, the electrode assembly 30 is not for distinction between a tensile load 19 and a pressure load 20 suitable. To distinguish, for example, another, not shown Electrode be provided. Alternatively or additionally, with suitable Choice of material and with such a structure such specific changes electrical / magnetic characteristics are achieved that a distinction between tensile load 19 and pressure load 20 also at only two electrodes 31, 32 is possible.

Ein weiterer Vorteil der Elektrodenanordnung 30 bzw. bei der Verwendung eines kapazitiven Sensors 12 zur Sensierung einer Betätigung des Türaußengriffs 10 liegt darin, daß gleichzeitig auch eine Annäherungssensierung realisierbar ist. Beispielsweise kann mit der Elektrodenanordnung 30 durch Änderung der elektrischen Kapazitäten erfaßt werden, wenn eine nicht dargestellte Hand einer Bedienungsperson in den Eingreifraum 14 eingreift. Dementsprechend ist also nur ein Sensor 12 sowohl zur Betätigungssensierung als auch zur Annäherungssensierung erforderlich.Another advantage of the electrode assembly 30 or in use a capacitive sensor 12 for sensing an operation of the outside door handle 10 is that at the same time a proximity sensing feasible is. For example, with the electrode assembly 30 by changing the electrical capacitances are detected, if not shown Hand of an operator engages in the engagement space 14. Accordingly, therefore, only one sensor 12 for both the actuation sensing and for proximity sensing required.

Ergänzend ist darauf hinzuweisen, daß die Elektrodenanordnung 30 auch - insbesondere bei einer kapazitiven Auswertung - ähnliche oder vergleichbare Signale wie die Signale A, B gemäß Fig. 4 bereitstellen kann. Es ist also eine entsprechende Auswertung möglich.In addition, it should be noted that the electrode assembly 30 also - especially with a capacitive evaluation - similar or comparable Signals as the signals A, B can provide as shown in FIG. So it is a corresponding evaluation possible.

Alternativ oder zusätzlich zu den Elektroden 31, 32 können auch Dehnungsmeßstreifen, Piezoelemente u. dgl., insbesondere auf den Innenwandungen, vorgesehen sein.Alternatively or in addition to the electrodes 31, 32 can also strain gauges, Piezo elements u. Like., Especially on the inner walls, be provided.

Ggf. können die Elektroden 31, 32 zu einer Meßschleife - wie durch die in Fig. 9 angedeutete Verbindung 29 - verbunden werden, um beispielsweise durch Änderungen der Induktivität bzw. Induktanz Verformun-gen zu erfassen.Possibly. For example, the electrodes 31, 32 may be formed into a measuring loop, as shown in FIG Fig. 9 indicated connection 29 - are connected, for example due to changes in inductance or inductance deformations too to capture.

Selbstverständlich können die vorgenannten Ausführungsvarianten der Türaußengriffanordnung 9 bzw. des Türaußengriffs 10 je nach Bedarf auch miteinander kombiniert werden. Beispielsweise können auch verschiedene oder mehrere Sensoren 12 bzw. verschiedene oder mehrere Sensorelemente 13 dem Türaußengriff 10 zugeordnet und ggf. in diesen integriert werden.Of course, the aforementioned embodiments of the outside door handle assembly 9 and the outside door handle 10 as needed, with each other be combined. For example, different or a plurality of sensors 12 or different or several sensor elements 13 assigned to the outside door handle 10 and possibly integrated into this.

Claims (35)

  1. Exterior door handle system (9) for a motor vehicle door lock system (2), the exterior door handle system (9) having an exterior door handle (10), in particular for opening an associated motor vehicle door lock (3), and a sensor (12) which is assigned to the exterior door handle (10) and is intended for detecting an actuation of the exterior door handle (10), in particular by an operator's hand, characterized in that the exterior door handle (10) does not have any movable parts (10), in that the exterior door handle (10) is designed in a manner such that it is fixed and is elastically deformable at least in some regions, and in that a deformation of the exterior door handle (10) can be detected by means of the sensor (12) as an actuation of the exterior door handle (10).
  2. Exterior door handle system according to Claim 1, characterized in that the exterior door handle (10) can be deformed elastically on an inner side (15) which in particular faces an associated motor vehicle door (4).
  3. Exterior door handle system according to Claim 1 or 2, characterized in that the exterior door handle (10) can be deformed elastically both upon a tensile loading (19) and upon a compressive loading (20), in particular with it being possible for both the tensile loading (19) and the compressive loading (20) of the exterior door handle (10) to be detected by the sensor (12).
  4. Exterior door handle system according to one of the preceding claims, characterized in that the exterior door handle (10) can be deformed elastically at least in a marked section (21).
  5. Exterior door handle system according to one of the preceding claims, characterized in that the exterior door handle (10) is of multipart design.
  6. Exterior door handle system according to one of the preceding claims, characterized in that the exterior door handle (10) is of at least substantially rigid design.
  7. Exterior door handle system according to one of the preceding claims, characterized in that the exterior door handle (10) is of hollow design.
  8. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) has a sensor element (13) which is arranged on the exterior door handle (10), is connected thereto or is integrated or fitted therein.
  9. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) and/or a sensor element (13) of the sensor (12) is/are designed and/or arranged in a manner such that it is at least substantially immovable.
  10. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) has at least one deformation-, force- and/or pressure-sensitive sensor element (13).
  11. Exterior door handle system according to Claim 10, characterized in that the sensor element (13) is designed as a piezo element.
  12. Exterior door handle system according to Claim 10 or 11, characterized in that the exterior door handle (10) and the sensor element (13) are designed and/or arranged in such a manner that, when the exterior door handle (10) is deformed, the sensor element (13) is loaded only over a small surface, in particular in a spot-like manner.
  13. Exterior door handle system according to one of Claims 8 to 12, characterized in that the exterior door handle (10) has a side wall (26) which can be deformed elastically, in particular can be pressed in, with a deformation of the exterior door handle (10) or of the side wall (26) acting on the sensor element (13) or a support (23) holding the sensor element (13), in particular exerting a force thereon.
  14. Exterior door handle system according to Claim 13, characterized in that the side wall (26) has a projection (27) which points towards the sensor element (13) and, when the exterior door handle (10) or the side wall (26) is correspondingly deformed, acts on the sensor element (13) or the support (23), in particular exerts a force thereon.
  15. Exterior door handle system according to Claim 14, characterized in that the projection (27) is of pin-like, conical, frustoconical or spherical-cap-shaped design.
  16. Exterior door handle system according to one of Claims 12 to 15, characterized in that the sensor element (13) or a support (23) holding the sensor element (13) is arranged between two side walls (26) of the exterior door handle (10) which can be deformed elastically, in particular can be pressed in, so that deformations of the side walls (26) act differently on the sensor element (13) or the support (23), in particular exert opposed forces thereon.
  17. Exterior door handle system according to one of Claims 13 to 16, characterized in that the side wall(s) (26) bounds or bound a cavity (25) of the exterior door handle (10).
  18. Exterior door handle system according to one of Claims 8 to 17, characterized in that the sensor element (13) is arranged on or at an in particular strip-shaped support (23).
  19. Exterior door handle system according to Claim 18, characterized in that the support (23) is mounted on the exterior door handle (10) preferably exclusively in opposite end regions (24) and/or is of rigid design.
  20. Exterior door handle system according to Claim 18 or 19, characterized in that the support (23) is held and/or ends with an end region (24) between two opposite, elastically deformable side walls (26), in particular between projections (27) arranged thereon.
  21. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) and/or the sensor element thereof (13) and/or an associated support (23) is and/or are arranged at least partially in a cavity (25) of the exterior door handle (10).
  22. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) is designed in such a manner that a deformation of the exterior door handle (10) can be detected by detecting a change in an electrical parameter, in particular a capacitance, inductance, impedance and/or a resistance.
  23. Exterior door handle system according to one of the preceding claims, characterized in that the sensor (12) has an electrode arrangement (30) as sensor element (13), in particular with it being possible for a deformation of the exterior door handle (10) to be detected by detecting a change in the capacitance, the inductance and/or the impedance of the electrode arrangement (30).
  24. Exterior door handle system according to Claim 23, characterized in that the electrode arrangement (30) has two electrodes (31, 32) spaced apart from each other.
  25. Exterior door handle system according to Claim 24, characterized in that the spacing between the electrodes (31, 32) can be changed as a function of a deformation of the exterior door handle (10).
  26. Exterior door handle system according to Claim 24 or 25, characterized in that at least one electrode (31, 32) is arranged on or in an elastically deformable side wall (26) of the exterior door handle (10).
  27. Exterior door handle system according to Claim 26, characterized in that the electrodes (31, 32) are arranged on or in opposite, elastically deformable side walls (26) of the exterior door handle (10), in particular on mutually facing inner sides of the side walls (26).
  28. Exterior door handle system according to Claim 26 or 27, characterized in that the side wall(s) (26) bounds or bound a cavity (25) and/or a compressible region of the exterior door handle (10).
  29. Exterior door handle system according to one of Claims 24 to 28, characterized in that at least one electrode (31, 32) is of film-like design, in particular is produced from metal foil.
  30. Exterior door handle system according to one of Claims 23 to 29, characterized in that the electrode arrangement (30) and/or at least one, preferably both, of the electrodes (31, 32) extends and/or extend at least partially transversely, in particular perpendicularly, to a main direction of deformation (19, 20) of the exterior door handle (10).
  31. Exterior door handle system according to one of Claims 23 to 30, characterized in that an approach, in particular of an operator's hand, towards the exterior door handle (10) can be detected by means of the electrode arrangement (30), in particular capacitively.
  32. Method for controlling a motor vehicle door lock system (2) having a motor vehicle door lock (3) and an exterior door handle (10) which is assigned to the motor vehicle door lock (3), is of fixed design and does not have any movable parts (10'),
    an actuation of the exterior door handle (10), in particular by an operator's hand, being detected by means of a sensor (12) assigned to the exterior door handle (10),
    the exterior door handle (10) being monitored by means of the sensor (12) for deformation, and
    a deformation, in particular when a response threshold is exceeded, being detected as an actuation of the exterior door handle (10) and the motor vehicle door lock (3) thereupon being unlocked and/or opened.
  33. Method according to Claim 32, characterized in that the sensor (12) converts a deformation of the exterior door handle (10) into electric signals or changes of at least one electrical parameter.
  34. Method according to Claim 32 or 33, characterized in that a tensile loading (19) of the exterior door handle (10) and/or a compressive loading (20) is detected from a deformation of the exterior door handle (10), in particular with it being possible to differentiate between a tensile loading (19) and a compressive loading (20).
  35. Method according to one of Claims 32 to 34, characterized in that the sensor (12) detects an approach, in particular of an operator's hand, towards the exterior door handle (10), in particular capacitively, in particular with, when an approach is detected, an access authorization being interrogated if the motor vehicle door lock (3) is locked, and/or the motor vehicle door lock (3) being unlocked if an access authorization is present or is established during the interrogation.
EP00993269A 1999-11-29 2000-11-29 Exterior door handle system Expired - Lifetime EP1238177B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29923706 1999-11-29
DE29923706U 1999-11-29
PCT/EP2000/011909 WO2001040607A1 (en) 1999-11-29 2000-11-29 Exterior door handle system

Publications (3)

Publication Number Publication Date
EP1238177A1 EP1238177A1 (en) 2002-09-11
EP1238177B1 true EP1238177B1 (en) 2005-08-24
EP1238177B2 EP1238177B2 (en) 2009-03-25

Family

ID=8083783

Family Applications (2)

Application Number Title Priority Date Filing Date
EP00993269A Expired - Lifetime EP1238177B2 (en) 1999-11-29 2000-11-29 Exterior door handle system
EP00981315A Expired - Lifetime EP1240400B1 (en) 1999-11-29 2000-11-29 Motor vehicle door lock system

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00981315A Expired - Lifetime EP1240400B1 (en) 1999-11-29 2000-11-29 Motor vehicle door lock system

Country Status (4)

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US (2) US20030029210A1 (en)
EP (2) EP1238177B2 (en)
DE (2) DE50011082D1 (en)
WO (2) WO2001040606A1 (en)

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WO2001040606A1 (en) 2001-06-07
EP1238177A1 (en) 2002-09-11
US20030029210A1 (en) 2003-02-13
DE50011082D1 (en) 2005-10-06
US20030101781A1 (en) 2003-06-05
EP1240400A1 (en) 2002-09-18
WO2001040607A1 (en) 2001-06-07
DE50011038D1 (en) 2005-09-29
EP1238177B2 (en) 2009-03-25
EP1240400B1 (en) 2005-08-31

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