EP1083285A1 - Système de verrouillage de portes de véhicule de voiture - Google Patents

Système de verrouillage de portes de véhicule de voiture Download PDF

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Publication number
EP1083285A1
EP1083285A1 EP00117964A EP00117964A EP1083285A1 EP 1083285 A1 EP1083285 A1 EP 1083285A1 EP 00117964 A EP00117964 A EP 00117964A EP 00117964 A EP00117964 A EP 00117964A EP 1083285 A1 EP1083285 A1 EP 1083285A1
Authority
EP
European Patent Office
Prior art keywords
door handle
motor vehicle
vibration
locking system
sensor
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.)
Withdrawn
Application number
EP00117964A
Other languages
German (de)
English (en)
Inventor
Thomas Dreimann
Rainer Josef Berger
Stephan Dr. Schmitz
Christian Gerhardt
Gregor Buedding
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
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19957417A external-priority patent/DE19957417A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1083285A1 publication Critical patent/EP1083285A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/10—Handles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/42—Means for damping the movement of lock parts, e.g. slowing down the return movement of a handle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/54—Electrical circuits
    • E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
    • E05B81/76—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles
    • E05B81/77—Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles comprising sensors detecting the presence of the hand of a user

Definitions

  • the present invention relates to a motor vehicle door locking system according to the preamble of claim 1, an outer door handle assembly for a motor vehicle door locking system according to the preamble of claim 27, a Using a piezo oscillator and a method of control a motor vehicle door locking system according to the preamble of the claim 34.
  • the "passive entry" function includes an automatic, Motor vehicle-side data query or identification of an operator-side Understand data carrier, transponders or the like. To determine whether a an operator approaching the motor vehicle or an operator, which is already in the process of the motor vehicle or a motor vehicle door is open to access. This is mostly from a corresponding one Electronics of the motor vehicle checked. With appropriate Authorization of the operator is usually automatic Unlock either a central locking system, the driver's door lock or at least the door lock of the door that the operator is concerned with approaches or whose outside door handle touches or actuates the operator.
  • a motor vehicle door locking system with a "passive entry" function is required for the control electronics a specific reaction phase or time, which from a startup interval to the system when the disk approaches or remote control module, an authorization check interval to the operator based on the coding of the between remote control module and control electronics to check exchanged signals for their authorization, and finally the actual interval of action in which the action takes place, in particular the unlocking of the motor vehicle lock is carried out is put together.
  • an appropriate reaction phase is required when locking the motor vehicle door locking system. This is but less critical because the operator hardly notices it.
  • the duration of the reaction phase of a few hundred milliseconds is in Compared to conventional motor vehicle door locking systems as long felt if the start-up interval only when the outer door handle is actuated starts. Pulling the outer door handle or the like can namely with a "passive Entry "function may already take place when the reaction phase of the Control electronics has not yet been completed. The operator must then pull the outer door handle a second time, which is a "malfunction" can be interpreted.
  • Another approach is the start-up interval of the control electronics not to start only when the outer door handle is actuated, but already an operator's hand approaching the outside door handle to start the start-up interval. It is known to do this on the outside door handle to provide a capacitive proximity sensor (DE-A-197 52 974; DE-A-196 17 038) by which the operator's hand approaches already about 100 to 150 ms before touching the outside door handle is grasped by hand. Starting the start-up interval of the Control electronics, that is to say the “waking up” of the control electronics, then take place so far before the actual pulling of the outside door handle that the Start-up interval and usually also the authorization check interval has already been completed are when the outside door handle is held by the operator's hand is actually moved.
  • a capacitive proximity sensor DE-A-197 52 974; DE-A-196 17 038
  • Electrodes of a capacitive sensor are on the one hand in an outside door handle and on the other hand arranged on the door side to one Approaching an operator's hand to the outside door handle or in to capture the area between the electrodes and then the "passive entry" function to activate.
  • capacitive proximity sensors in motor vehicle door locking systems of the type in question brings various difficulties with yourself.
  • the proximity sensors have a comparative one high quiescent current, on the other hand, it is difficult to have a stable, clear Set response threshold.
  • External influences such as rain, snow, dust and dirt change the measured values with capacitive proximity sensors very.
  • the problem with capacitive proximity sensors is the not to be overlooked by the electromagnetic interference radiation emitted by them.
  • automotive door locking systems have with "passive entry" function, where only a touch or operation of the outside door handle by the hand of an operator the start-up interval of the control electronics starts, also considerable advantages.
  • Another problem with the prior art is that between one Approaching the outside door handle and touching the outside door handle cannot be distinguished. Often, therefore, approaching with a first sensor and touching or pressing the outside door handle with detected by a second sensor. Accordingly, there is a lot of effort and high cost.
  • the present invention is based on the object of a motor vehicle door locking system, an outer door handle arrangement for a motor vehicle door locking system, a use of a piezo vibrator and a To provide methods for controlling a motor vehicle door locking system so that approaching, in particular an operator's hand, in a simple manner, to an outside door handle and / or touching and / or actuating of the outer door handle can be detected, in particular then a "passive entry" function of the motor vehicle door locking system is activated or a start-up interval of the control electronics can be started.
  • a basic idea of the present invention is instead of capacitive sensing of approaching known from the prior art to the outside door handle or touching the outside door handle the outside door handle or at least part of it in mechanical vibrations to move and by means of a sensor the vibration behavior and / or by measure the vibration caused sound waves or their reflections, to approach the outside door handle, to touch the outside door handle and / or to detect an actuation of the outer door handle.
  • Touching the outer door handle is preferably done by one of the two detected or detected the following possibilities.
  • the swing behavior of the outer door handle changes. This can be recorded, for example by recording or evaluating the Damping behavior, the change in the resonance frequency, the change the vibration amplitude or the like.
  • the outside door handle or at least part of it is so in Vibration displaces that sound waves, especially in the ultrasonic range, radiated and, for example, from adjacent areas of the assigned Door in particular can be reflected back.
  • the reflected, again sound waves hitting the outside door handle and / or those on the door striking sound waves are recorded.
  • an operator's hand touches the outside door handle in particular embraces or is actuated the aforementioned sound propagation is interrupted, which is recorded accordingly and can be evaluated.
  • the touch and / or proximity sensor enables early detection Activate the "Passive Entry” function or start the start-up interval control electronics. Enough time is saved, for example unlock the motor vehicle lock before the operator actually the outside door handle for opening the corresponding motor vehicle door or the motor vehicle lock actuated.
  • Another aspect of the present invention is that very simple Both the proximity and the touch sensing can be made. So can be done in two stages, temporally staggered, corresponding functions of the motor vehicle door locking system, the control electronics or, for example, other electronics of the Motor vehicle be activated.
  • a piezo vibration generator is preferably used to generate the mechanical ones Vibration used. Such a component is proportional reasonably priced.
  • the vibration generator is preferably operated in the ultrasound range. This is especially true when emitting sound waves that are not should be audible, advantageous.
  • the vibration generator can be designed so that it the one hand External door handle or a part thereof vibrate and on the other hand Can radiate (ultra) sound waves directly. This is particularly the case with one Sensing both the approach and the touch is advantageous.
  • a sensor for detecting the vibration or sound waves is preferred also assigned to the outside door handle, especially like that Vibration generator arranged on the outside door handle.
  • the sensor could for example also in an adjacent door area, for example one Handle shell of an outside door handle arrangement or the like.
  • a separate or additional sensor can only be used for detection of sound waves, in particular in the ultrasound range.
  • a particularly simple and inexpensive embodiment provides that the vibration generator also forms the sensor. Especially with a pulsed one The vibration generator can then generate the vibration in work as a sensor during the pause.
  • touch sensing takes place.
  • the vibration characteristic changes, in particular the vibration amplitude, if necessary also the frequency.
  • This change is evaluated, and the result the evaluation is used to "wake up" the control electronics, So to start a start-up interval of the control electronics, so that then Authorization check interval can follow.
  • This time saving can be enough that in any case the start-up interval, usually also the authorization check interval at least for the most part it can be run through before the outside door handle then actually pulled or operated.
  • the operator has then the feeling that the motor vehicle door lock is immediate reacts, i.e. immediately runs through the action interval.
  • the motor vehicle 1 shown schematically in FIG. 1 has a motor vehicle door locking system on where the various motor vehicle locks 2 schematically for motor vehicle doors and a motor vehicle flap or the like with their installation positions are indicated.
  • Each is preferably Motor vehicle lock 2 motorized, preferably electric motor, unlockable and lockable by means of a central locking drive.
  • the motor vehicle lock 2 additionally the possibility of a motorized opening, i.e. lifting the pawl, by means of an opening drive. In this case unlocking and locking also take place only in terms of circuitry.
  • a another variant is also the equipment of the motor vehicle locks 2 with a Auxiliary locking drive that is identical to or from the opening drive can be separated.
  • the state of the art be referred (DE-A-196 29 709 etc.).
  • Control electronics 3 are indicated in the motor vehicle door locking system is indicated here as central control electronics, but also, in particular partially, decentrally assigned to each of the motor vehicle locks 2 can.
  • a hood lock to be operated by means of a key is also provided 4 for the hood of the motor vehicle and a remote control module 5, which runs as a "passive entry” chip card or other data carrier is.
  • the control electronics 3 operate overall with a "passive entry” function, with an “electronic key". In this respect, too the previously mentioned prior art.
  • the motor vehicle body can be recognized by the respective motor vehicle door an outside door handle 6 or the like, and a lock cylinder on the driver's door 7 for actuation with a mechanical key 8, one such actuation takes place in an emergency (emergency release and, if necessary, emergency opening).
  • Fig. 2 shows a typical door handle arrangement Motor vehicle door locking system of the type in question with the outside door handle 6 and the locking cylinder 7.
  • a switching device is also indicated 9 on the outside door handle 6, with which when pulling the outside door handle 6 Switching signal is triggered to lift an electric opening drive to actuate the pawl.
  • This is the variant of an electric lock.
  • the switching device takes the place 9 a transmission mechanism of a classic design.
  • Fig. 3 shows schematically the outer door handle 6 in the for the teaching of the invention essential connection.
  • an electric vibration generator 10 on the other hand a sensor 11, in particular an electrical vibration sensor, is arranged.
  • the outer door handle 6 is in the illustrated embodiment into vibration by means of the vibration generator 10 offset, the frequency and / or amplitude recorded by the sensor 11 and is evaluated in particular by an associated electronics.
  • At Touching the outside door handle 6 by the hand of an operator the frequency, the amplitude and / or the attenuation or decay the vibration of the outer door handle 6 changed. This change is evaluated as a signal for starting the start-up interval of the control electronics 3.
  • Fig. 3 shows the excitation circuit 12 for the vibration generator 10 and the evaluation circuit 13 for the sensor 11.
  • the evaluation circuit 13 can be a simple threshold switch if necessary.
  • the excitation circuit 12 for the vibration generator 10 on the one hand and the evaluation circuit 13 for the sensor 11, on the other hand, directly or within the control electronics 3 to connect in terms of circuitry by means of a feedback circuit, that the frequency and / or the amplitude of the vibration into which the outside door handle 6 is moved, can be regulated.
  • the regulation to a constant Measured value and the evaluation of the energy required for this then available as the measured value to be evaluated, is usually from the Measurement accuracy ago more appropriate.
  • the motor vehicle door locking system at least a touch or even an actuation the outside door handle 6 required by the hand of an operator, to start the start-up interval of the control electronics 3, the control electronics 3 "wake up".
  • This start happens at the time earliest possible time, namely when you first touch the outside door handle 6, with the result that the actual actuation or pulling of the Outside door handle 6 takes so long that the start-up interval and the authorization check interval has expired and the action interval, regularly lifting the pawl for the operator apparently runs without delay.
  • a piezo vibration generator is, in particular, a vibration generator 10 intended.
  • a piezo vibration generator is small, easy to install a component, such as the door handle 6, couple and has as a special The advantage of a comparatively low power consumption.
  • vibration generator 10 Other alternatives for vibration generator 10 are known from the prior art Technology known, for example from the "Lexicon Electronics and Microelectronics", VDI publishing house, Düsseldorf; 1990, pp. 765/766.
  • An acceleration sensor comes as sensor 11 especially because it is robust, very inexpensive sensor elements, whose output signal can be easily evaluated. It is primarily a voltage signal, then using a voltage threshold switch as Evaluation circuit 13 is passed on to the control electronics 3. Touched the hand of an operator the outside door handle 6, so in this If the amplitude of the vibration drops sharply, with it the acceleration, measured by the acceleration sensor as a vibration sensor 11 becomes. This signal is evaluated and for starting the start-up interval the control electronics 3 used. During the following authorization check interval the control electronics 3 checks the authorization of the operator based on the signal exchange with the remote control module 5 and releases the action interval if the authorization is found to be positive has been.
  • the design is recommended for the acceleration sensor as sensor 11 as a sensor according to the specifications known in the prior art, for example from the already mentioned “Lexicon Electronics and Microelectronics” loc. cit., pp. 766 - 768.
  • the fault sensitivity of the motor vehicle door locking system can do another significant improvement be achieved that the change in frequency and / or amplitude of the Vibration or the damping behavior of the outer door handle 6 or its Is only partially evaluated as a signal to start the start-up interval, if this change is made with a minimum rate of change.
  • the evaluation circuit 13 leads only a rapid change in frequency and / or Amplitude of the vibration or damping behavior of the outside door handle 6 or its part, as it is for touching the outer door handle 6 by an operator's hand, to the desired signal the evaluation circuit 13 leads.
  • the outside door handle is not 6 overall, but possibly also part of the outer door handle 6 in vibrations can be moved.
  • the energy consumption of the vibrator 10 is of course the lower, the lower the mass of the vibrating offset part is. 4 therefore shows a variant of the teaching of the invention, which is characterized in that only part of the outer door handle 6, in the illustrated embodiment, an inner handle 14 of the Outside door handle 6 is set in vibration.
  • This arrangement also has the advantage that the vibration generator 10 inside and hidden between the part or the handle shell and the rest of the outside door handle 6 can be. Also the electrical connections for the vibration generator 10 and the sensor 11 or the sensors 11 can thus be between the Place part and the rest of the outside door handle 6 well.
  • the handle 14 or the other part of the outside door handle 6 via a To connect type of idle stroke connection with the rest of the outside door handle 6.
  • the invention also relates to a correspondingly designed Outside door handle arrangement for itself, for example, together with the associated Motor vehicle lock 2 or separately on the motor vehicle door, a motor vehicle flap or the like attached or built into this becomes.
  • the outer door handle 6 or a part thereof is preferably set to vibrate in the ultrasonic range and / or the vibration generator 10 operates in the ultrasonic range.
  • Ultrasonic range here means vibrations with frequencies in the range from 16 or 20 kHz to approximately 8 ⁇ 10 9 Hz. This ensures that sound waves emitted by the outer door handle 6, its part and / or the vibration generator 10 cannot be heard, since it is then ultrasound.
  • the outer door handle 6, part of it and / or immediately the vibration generator 10 sound waves, especially ultrasonic waves, blast as indicated in Fig. 5.
  • these sound waves can additionally or alternatively to the previously described touch sensing another touch sensing can be realized.
  • a proximity sensor can be realized.
  • the sound waves can either be direct again meet a section of the outer door handle 6 or from neighboring Areas of the motor vehicle door 17 to the outer door handle 6 and / or to one 5, as shown by arrow 18, is reflected become.
  • the Vibration generator 10 also works as a sensor that detects the vibrations can that of the back on the outside door handle 6 or part of it cause striking sound waves.
  • the attachment of a separate sensor 11, as already described above, is not (absolutely) necessary here.
  • the sound waves form in the interior 16 and / or in adjacent ones A sound barrier or a sound field. If one doesn't represented hand of an operator moves in this sound field, so in particular by reaching into the interior 16 the outside door handle 6 approaches, the sound barrier is interrupted or the sound field changed or disturbed, which are recorded and evaluated accordingly can, a proximity sensor and / or a touch sensor will be realized.
  • the outer door handle 6 and / or directly Vibration generator 10 in the outside space radiate away, as in Fig. 5 through wave fronts 19 indicated.
  • the sound waves hit an approaching hand of one Operator, these at least partially become the outside door handle 6 reflected.
  • the reflected sound waves can in turn pass through a separate sound sensor and / or indirectly by coupling it in the outer door handle 6 or a part thereof and the resulting Vibrations generated by the vibrator and / or a separate one Sensor are measured, recorded and evaluated.
  • proximity sensing is also possible in this way.
  • the abscissa represents a time axis t.
  • the ordinate gives the amplitude A of the vibration of the outer door handle 6 or a part of it.
  • the outer door handle 6 is preferably only pulsed, d. H. is only occasionally vibrated, as indicated by the vibration or excitation pulse 20.
  • a touch sensation can then be done in a very simple manner in that the decay or the damping of the vibration of the outside door handle 6 is detected and is evaluated.
  • the line 21 in Fig. 6 shows an example of the course, like the Vibration subsides when the outside door handle 6 is free.
  • Line 22 shows an example the damping when the outer door handle 6 is touched, d. H. if one hand one Operator touches the outer door handle 6. The significantly stronger damping when touched can be recorded and evaluated, so that simple It is possible to detect whether an operator's hand grips the outside door handle 6 touched or already pressed.
  • a recording and evaluation can be directed towards it be that a signal 23, especially after a certain time T, as Sequence of the oscillation pulse 20 occurs.
  • the signal 23 can be in particular a reflected signal that is generated by that the outer door handle 6 by the vibration signal 20 in vibration is displaced, emits sound waves and this again to the outside door handle - especially by an operator's approaching hand - be reflected and cause vibration in the outer door handle 6 again, which is detected as signal 23.
  • the measurement or acquisition can be carried out by the vibration generator 10 and / or a separate one in FIGS. 5 and 6 not sensor 11 or the like.
  • the appearance or absence of the "reflection" signal 23 and / or the running time T or the change thereof be evaluated in order to recognize or detect the approach of a hand.
  • a corresponding sensor in particular a microphone or a Ultrasonic transducer to measure the reflected sound waves directly to capture.
  • Another alternative - especially for touch sensing - results is characterized in that, instead of sound radiation, the course of an oscillation pulse detected along the outer door handle 6 or a part thereof and is evaluated.
  • the vibration generator 10 can Generate vibration pulse 20, which is then along the outer door handle 6 spreads in particular at a characteristic speed.
  • the Vibration pulse can then, for example, in the area of an opposite one End of the outer door handle 6 detected by a sensor arranged there according to the signal 23.
  • the oscillation pulse also, for example in the area of a fastening or storage of the outer door handle 6, reflected and then from the vibration generator 10 or a correspondingly arranged sensor can be detected.
  • the result is a signal 23 which occurs with a delay or transit time T. If an operator's hand touches the outside door handle 6, the Time T and / or the amplitude and / or shape of the signal 23 changed. This can be detected and evaluated for touch sensing.
  • both proximity sensing and touch sensing is also carried out.
  • the evaluation output a first signal when an approach is detected or sensed, the "passive entry" function or the start-up interval of the control electronics 3 to start.
  • the appropriate authorization and with correspondingly temporally correlated sensing of the touch of the outer door handle 6 unlocking of a central locking system and / or open the assigned motor vehicle lock 2.
  • one can External door handle 6 assigned switch or the switching device 9 are omitted. It is even not necessary to like the outside door handle 6 or part of it the handle shell 14, movable or store.
  • the proximity sensor and / or Touch sensing also for controlling other motor vehicle functions and used to activate other vehicle controls can be.
  • the evaluation electronics 13 preferably do this or control electronics corresponding to other electronics.

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EP00117964A 1999-09-07 2000-08-22 Système de verrouillage de portes de véhicule de voiture Withdrawn EP1083285A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19942572 1999-09-07
DE19942572 1999-09-07
DE19957417 1999-11-29
DE19957417A DE19957417A1 (de) 1999-09-07 1999-11-29 Kraftfahrzeug-Türschließsystem

Publications (1)

Publication Number Publication Date
EP1083285A1 true EP1083285A1 (fr) 2001-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117964A Withdrawn EP1083285A1 (fr) 1999-09-07 2000-08-22 Système de verrouillage de portes de véhicule de voiture

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US (1) US6809630B1 (fr)
EP (1) EP1083285A1 (fr)

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