DE102004042112A1 - Operating unit for a motor vehicle locking system has keyless entry and an approach or touch sensitive sensor and signal to indicate condition of system - Google Patents

Abstract

An operating unit for a motor vehicle locking system comprises at least one operator-sensitive approach/touch sensor (2,3), especially in combination with a keyless entry/go locking system. An active signal producer (5) in or by the device informs the user of the operating condition of the device. An independent claim is also included for a process to show the operating condition of the device.

Description

The The invention relates to an actuating device for a Motor vehicle locking system with at least one approach or touch through an operator-sensing sensor, especially in combination, with a keyless entry system ( "Keyless Entry / Go "closing system), and a method for displaying an operating state of a motor vehicle locking system.

at modern locking systems for motor vehicles are becoming increasingly so-called electronic key with radio transmission used ("Keyless Entry / Go "locking systems). It leads an operator a smart card with a built-in radio transmitting and Receiving part (RF-ID card), whereby a door unlocking device is used to open or lock the door. or locking process of the motor vehicle locking system by pulling on the door handle or by activating sensors in or on the door handle is initiated.

From the DE-OS 100 51 055 A1 a device for initiating an opening and locking operation of a motor vehicle is known, in which a first and a second proximity sensor is to be used, which generates a Entriegelungswunschsignal to initiate an opening operation of a locking system of a motor vehicle, and generates a corresponding corresponding locking desire signal, whichever Sensor technology approaches an operator.

disadvantageous is there that no feedback for the Operator is generated, in which operating state, the locking system located.

According to the known prior art EP 1 235 190 A1 is also known a keyless actuation and locking device for motor vehicles, in which a user-specific carried by the operator disk as a keyless remote access element with a capacitive sensor on a door handle together causes locking and unlocking of the locking device, wherein the start of the data query of the disk by changes in distance to electrodes of the capacitive sensor in the door handle is caused. Again, the operator is not informed of the current operating state of the locking device directly.

In the further known prior art DE-OS 197 57 294 A1 an electronic anti-theft system for motor vehicles has become known, in which a dialogue between a vehicle-mounted control unit and a user-carried authorization component takes place to identify the authorization. In this case, the accompanying authorization component should be able to tactibly signal the receipt of an interrogation signal by means of haptic signals. To generate the haptic signal, a mechanical oscillator is proposed in the authorization component. The mechanical oscillator should be activated as soon as the authorization component receives a request signal of the vehicle-mounted control unit. In this case, however, the authorization component must rest against the body of the operator, so that he can perceive the haptic signal. This is awkward and does not serve a timely and state-related information message.

there is disadvantageous in the entire state of the art that the operator not clearly aware of action or gets notified when the unlocking process or locking process completed or has been initiated, or whether the query of the access authorization was successful by means of the RF-ID card.

task The invention is an actuator for a Motor vehicle locking system and a method for displaying an operating state of a motor vehicle locking system to disposal to put these disadvantages with as simple and effective Means overcomes.

These Task is by an actuator for a Motor vehicle locking system with the features of claim 1 and by a method for display an operating state of a motor vehicle locking system solved with the features of claim 14.

According to the invention, it is provided that an active haptic signal transmitter in or on the actuator is provided, by means of which the operating conditions of the operator Motor vehicle locking system can be displayed. Active means that the perceptible by the sense of touch confirmation signal by a controllable signal generator in or on the actuating device is produced. This allows an active feedback to the operator, thereby this targeted over certain operating conditions of the motor vehicle locking system can be informed.

The Invention proposes before, the operator actively generated information in dependence of the locking or unlocking process. Thereby is associated with a not yet or not fully unlocked, a vehicle door Motor vehicle locking system a repeated pulling on the door handle by the operator who does not recognize the completed unlocking can, made preventable, since the operator the appropriate operating condition gets displayed.

A advantageous embodiment of the invention provides that the active haptic signal generator an electric motor powered by this Imbalance is. Thus, in a particularly simple manner, a good tactile haptic Signal are generated.

A likewise advantageous embodiment provides that the active haptic Signaling device is a piezo element or a miniature speaker.

A preferred embodiment of the invention provides that the actuating device in the door handle, especially in the outside door handle, a motor vehicle is arranged.

From Advantage are especially in a door design without door handle two Sensors provided with different detection range, wherein the Detection areas in particular two juxtaposed surfaces are. Thus, you can Different operating status requests from the operator through targeted Activation of the sensors are communicated.

the Following are the detection areas of advantage for one of Outside, the vehicle door of the motor vehicle remote from the door handle, and on the other the vehicle door the motor vehicle facing region of the door handle.

As well At least one of the sensors and the haptic are advantageous Signal generator formed by a single piezoelectric element. hereby The component can take over both functions while saving further components.

A preferred embodiment of the invention provides that a transmission and / or receiving device for a radio signal of an RF-ID card (transponder) is provided. In order to can be a radio link to a so-called electronic key to Query the access authorization to be established.

A Control and evaluation is according to a preferred embodiment provided, the supplied signals of the / the sensors and / or the transmitting and / or receiving device evaluates.

From Advantage, at least one sensor comprises at least one electrode, and is designed in particular as a capacitor, in particular the electrode of the sensor by an electrode of the piezoelectric element is formed, with an approximation or actuation by an operator through a dynamic capacity evaluation is sensed.

to Connection and communication of the elements with each other and the Supplying the individual elements with an operating voltage are the sensors and / or the haptic signal transmitter and / or the control and evaluation and / or the transmitting and / or receiving device with each other via a shared data bus, over in particular also all connected elements with the Operating voltage to be supplied. This data bus is for saving for data transmission necessary individual lines serially designed.

Of the haptic signal generator is according to an advantageous Training in or on a particular trained as a component carrier profile body formed, which profile body from the body the actuator surrounding material, wherein the haptic signal generator is sealed in a cavity.

preferably, is designed as an electric motor with driven by this imbalance haptic Signalers partially surrounded by a shell that sealing with a recess in the profile body is pressed to form the cavity.

According to the inventive method is provided that for displaying an operating state of a motor vehicle locking system, in particular by means of an actuating device according to one of the claims 1 to 13, at least one on or in an actuator for a motor vehicle locking system Trained, an approach or contact queried by an operator sensing sensor, wherein after successful detection of a signal to indicate a selected operating condition of the motor vehicle locking system a in or on the actuator provided active haptic signal generator is actuated.

A advantageous embodiment of the method provides that by means of a transmitting and / or receiving device separate from the motor vehicle locking system trained keyless entry system ( "Keyless Entry / Go "locking system" is queried, with an access authorization of the operator by an automated dialogue between transmitting and / or receiving device and the separately trained RF-ID card is detected.

From Advantage is the dialogue to determine the access authorization means the radio connection after the detection of a signal on a Sensor completed.

A preferred embodiment of the method provides that two sensors (outer and inner) with different detection range from be asked, wherein the detection areas on the one hand to the outside, a vehicle door of a motor vehicle facing away from an area of a door handle, and on the other hand, the vehicle door of the motor vehicle facing portion of the door handle. It may be advantageous for the region of the door handle facing the vehicle to be directed inwardly in the direction of the recessed grip.

at Locked state of the motor vehicle locking system is according to a advantageous embodiment of the method upon detection of a signal on the outer sensor and / or on the inner sensor unlocking the motor vehicle locking system initiated.

A advantageous variant of the method provides that by means of active haptic signaler the detection of the signal is displayed becomes.

A no less advantageous variant of the method provides that by means of the active haptic signal transmitter the established access authorization of the operator is displayed.

A likewise advantageous variant of the method provides that by means of of the active haptic signal transmitter the complete mechanical release of the motor vehicle locking system is shown.

A Another preferred embodiment of the method provides that in the unlocked state of the motor vehicle locking system upon detection of a signal only on the outer sensor a lock of the motor vehicle locking system is initiated.

According to one Modification of the method is provided that only at detection a movement along the actuator, especially in one direction, by means of a Sen sors a lock of the motor vehicle locking system is initiated.

As well It is advantageous that by means of the active haptic signal generator the detection of the signal is displayed.

through of the active haptic signaler becomes the established access authorization Advantageously displayed by the operator.

preferably, becomes the complete mechanical means of the active haptic signal generator Lock the motor vehicle locking system displayed.

Further Advantages, special features and expedient developments of the invention emerge from the other dependent claims or their sub-combinations.

following the invention will be further explained with reference to the drawing. in the Individual shows the schematic representation in.

1 a plan view of a schematic cross-sectional view of an actuating device according to the invention in a door handle of a motor vehicle,

2 a plan view of a schematic cross-sectional view of an actuating device according to the invention in a further embodiment with an electronic key,

3 a more detailed cross-sectional view through an actuator according to the invention with a motor-driven imbalance as a haptic signal generator,

4 a top view obliquely from above on a profile body with attached piezoelectric element as a haptic signal generator and as a sensor, and

5 an enlarged detail of the range of motor-driven unbalance 3 ,

The in the figures, the same reference numerals designate the same or the same acting elements.

In 1 is an exemplary door handle 6 of a motor vehicle 7 shown, as usual, at the vehicle door 71 is appropriate. The operating device 1 is in the door handle 6 educated.

The actuating device 1 indicates two sensors approaching an approach or contact by an operator 2 and 3 on. These serve to initiate a locking or unlocking process of the motor vehicle locking system.

To indicate the operating conditions and / or the workflows of the motor vehicle locking system is an active haptic signal generator 5 intended. In this case, active means that the signal generator can be activated actively and selectively, unlike conventional motor vehicle locking systems, in which at most mechanical detents of the lock per se or the like were possibly perceptible.

Thereby becomes an active feedback and an information flow to the operator possible, whereby this targeted over certain operating conditions of the motor vehicle locking system can be informed.

The active haptic signaler 5 is made up of an electric motor 51 with imbalance driven by this 52 together, which makes a vibration or shaking felt while the engine is running. Such generated vibration is clearly perceptible. A visual contact, for example, to just in the sunlight poorly visible indicators or a third party annoying acoustic message by means of a horn is no longer necessary.

There are two sensors 2 and 3 each provided with a different detection range. The detection range of the (outer) sensor 2 is the outside, the vehicle door 71 of the motor vehicle 7 remote area of the door handle 6 , and the detection range of the (inner) sensor 3 is the vehicle door 71 of the motor vehicle 7 facing area of the door handle 6 , In the example, so the inner sensor 3 essentially the area of the inner door handle and the recessed grip 61 the door handle monitors.

The two different areas serve a different function selection by the operator and a simple plausibility check by one of the actuator 1 associated control and evaluation 8th containing the signals supplied by the sensors 2 . 3 evaluates (see also 2 ).

So can in the example with closed but unlocked vehicle door an opening request the door of the Operator to be distinguished from a desire to lock the door.

Thus, the invention provides that when unlocked state of the motor vehicle locking system upon detection of a signal only on the outer sensor 2 a lock of the motor vehicle locking system is initiated. Simultaneous detection on both sensors, as is common in the normal gripping of a door handle during normal opening of the door, will not cause any action when unlocked.

Thus, it can furthermore be provided that only upon detection of a movement along the actuating device, in particular in one direction, by means of, for example, the outer sensor 2 a lock of the motor vehicle locking system is initiated.

Detection of the activity triggering signal is then controlled by the operator by means of the active haptic signal generator 5 displayed.

When locked state of the motor vehicle locking system and detection of a signal on the outer sensor 2 and / or on the inner sensor 3 a release of the motor vehicle locking system is initiated accordingly. An unlocking required by the operator does not always coincide with the desire to open a door.

By means of the active haptic signal generator 5 On the one hand, the detection of the signal can be displayed or the complete mechanical unlocking of the motor vehicle locking system.

The two sensors 2 . 3 Detect an approach of an operator, the sensors in the example each include a ball capacitor for this purpose. The detection is carried out by a dynamic sensing process. The one electrode of the capacitor is charged and discharged in rapid succession, wherein the environment of an electrode formed on the ball capacitor serves as a second electrode. Now approaching a hand of an operator, the capacity of the ball capacitor is changed. This change in capacitance is easily measurable by the dynamic loading and unloading process (for example, when the ball capacitor is part of a resonant circuit).

at usual capacitive sensors were provided at two fixed electrodes which an approaching Hand only as introduced into the capacitor field dielectric was detectable.

Instead of Of course, capacitive sensors are also an action wish an operator recognizing sensors possible. These are non-contact Sensors as well as buttons or the like conceivable.

In 2 is an extension of the actuator according to the invention 1 shown. Thus, the already described system with a keyless entry system ("Keyless Entry / Go" -Schließsystem) 4 . 41 . 42 combined.

Such is a transmitting and / or receiving device 41 for a radio signal of an RF-ID card (transponder) 42 intended. The RF ID card 42 works contactless by means of a radio link via the transmitting and / or receiving device 41 the actuator 1 and a transceiver formed on the card.

The RF ID card 42 can thereby have an active power supply, so with a charged power supply, for example in the form of a button cell, or a passive power supply, the latter, the supply energy from the antenna of the RF-ID card and thus of the transmitting and / or receiving device 41 the actuator 1 in the form of transmission power.

By means of the transmitting and / or receiving device 41 becomes the RF ID card of the keyless entry system 4 queried. The access authorization of the operator B is through an automated dialogue between transmitting and / or receiving device 41 and the separately formed RF-ID card 42 detected. The dialog reconciles individual digital access data with the RF ID card provided by the operator.

This dialog is advantageous for determining the access authorization by means of the radio connection after the detection of a signal at a sensor 2 . 3 completed, so that not without reason an electrical energy consuming radio link must be established.

By means of the active haptic signal generator 5 also the established access authorization of the operator B can be displayed according to the procedure described above.

For controlling and detecting the states of the actuator 1 is still a control and evaluation 8th provided the signals supplied by the outer and inner sensor 2 . 3 , and the transmitting and / or receiving device 4 . 41 and evaluates the closed state of a door lock, not shown, as well as the haptic signal generator 5 controls.

The sensors 2 . 3 , the haptic signaler 5 and the control and evaluation electronics 8th are connected to each other via a common serial data bus 9 connected via the same time a power supply takes place.

In the example shown, the sensors 2 . 3 and the active haptic signaler 5 via a driver electronics 91 to the data bus 9 connected.

The explained above embodiment The invention is for the purpose of better understanding only the one by the claims defined teaching according to the invention, as such by the embodiment not limited is.

In 3 is a more detailed cross-sectional view through an actuator according to the invention 1 shown.

The haptic signal generator is again with a means of an electric motor 51 driven imbalance 52 educated. The haptic signal generator is in this case on a profiled body carrying the internal components 63 (Component support 62 ) attached.

The profile body 63 itself is the material forming the body of the actuator 64 surrounded, wherein the haptic signal transmitter is sealingly enclosed in a separate cavity (see more precisely 5 ).

The two sensors 2 and 3 are formed by metal foils which are glued to the profile body.

In the example, the antenna is 43 attached to the transmitting and receiving device to the profile body.

The cavity 70 , in which the profile body is located, is still in a later manufacturing step through the casting opening 69 filled with a potting compound.

4 shows a plan view obliquely from above on a profile body 63 with attached piezoelectric element 31 as a haptic signaler 5 and as a sensor 3 ,

The metal electrode of the piezoelectric element 31 at the same time forms the electrode of a capacitor, as in the manner already described as a sensor 3 is working. As a result, an approach or actuation by an operator can again be sensed by a dynamic capacity evaluation. In this embodiment, therefore, no electromotive components for generating the haptic signal are not agile, which makes the production easier and cheaper.

An enlarged detail of the area 3 , the motor driven imbalance as a haptic buzzer, is in 5 shown.

The haptic signaler 5 is in that as a component carrier 62 trained profile body 63 pressed, the haptic signal generator 5 in a separate cavity 65 is sealed enclosed. That's important, since the profile body 63 is still enclosed by the potting material.

For this purpose, the electric motor 51 partly with a shell 66 surrounded, which sealing with a recess 67 in the profile body 63 forming the cavity 65 has been pressed. This allows a particularly simple assembly, with an assembly regardless of changes to the engine design because of the same outer shape of the shell 66 does not need to be adjusted.

The cavity between through the material 64 formed body and the profile body is after inserting the profile body 63 and the attached components with the end cap 68 locked.

1

actuator

2, 3

sensor

31

piezo element

4

keyless access system

41

Send- and / or receiving device

42

RF-ID card (Transponder)

43

antenna

5

haptic signaler

51

electric motor

52

unbalance

6

door handle

61

grip

62

component support

63

profile body

64

material

65

cavity

66

shell

67

recess

68

end cap

69

casting opening

70

cavity

7

motor vehicle

71

vehicle door

8th

control and evaluation electronics

9

bus

91

Driver electronics

B

operator

Claims (26)

Actuating device ( 1 ) for a motor vehicle closing system having at least one sensor that senses contact or proximity by an operator ( 2 . 3 ), in particular in combination with a keyless entry / go locking system ( 4 . 41 . 42 ), characterized in that an active haptic signal transmitter ( 5 ) in or on the actuating device ( 1 ) is provided, by means of which the operator (B) operating conditions of the motor vehicle locking system can be displayed. Actuating device according to claim 1, characterized in that the active haptic signal generator ( 5 ) an electric motor ( 51 ) with driven by this imbalance ( 52 ). Actuating device according to claim 1, characterized in that the active haptic signal generator ( 5 ) is a piezo element or a miniature speaker. Actuating device according to one of claims 1 to 3, characterized in that the actuating device ( 1 ) in the door handle ( 6 ), in particular in the outside door handle, of a motor vehicle ( 7 ) is arranged. Actuating device according to one of claims 1 to 4, characterized in that two sensors ( 2 . 3 ) are provided with different detection range, wherein the detection areas are in particular two juxtaposed surfaces. Actuating device according to claim 5, characterized in that the detection areas on the one hand the outside, the vehicle door ( 71 ) of the motor vehicle ( 7 ) facing away from the door handle ( 6 ), and on the other hand, the vehicle door ( 71 ) of the motor vehicle ( 7 ) facing the door handle ( 6 ). Actuating device according to claim 1 or 3 to 5, characterized in that at least one of the sensors ( 2 ; 3 ) and the haptic signal transmitter ( 5 ) by a single piezo element ( 31 ) are formed. Actuating device according to one of claims 1 to 7, characterized in that a transmitting and / or receiving device ( 41 ) for a radio signal of an RF-ID card (transponder) ( 42 ) is provided. Actuating device according to one of claims 1 to 8, characterized in that a control and evaluation ( 8th ) which provides the signals supplied by the sensor (s) ( 2 . 3 ) and / or the transmitting and / or receiving device ( 4 . 41 ) evaluates. Actuating device according to one of claims 1 to 9, characterized in that at least one sensor ( 2 . 3 ) comprises at least one electrode, and in particular is designed as a capacitor, wherein in particular the electrode of the sensor is formed by an electrode of the piezoelectric element, wherein an Annähe tion or actuation is sensed by an operator by a dynamic capacity evaluation. Actuating device according to one of claims 1 to 10, characterized in that the sensors ( 2 . 3 ) and / or the haptic signal transmitter ( 5 ) and / or the control and evaluation electronics ( 8th ) and / or the transmitting and / or receiving device ( 41 ) with each other via a common data bus ( 9 ) are connected, are supplied via the particular all connected thereto elements with an operating voltage. Actuating device according to one of the preceding claims, characterized in that the haptic signal transmitter ( 5 ) in or on a particular as a component carrier ( 62 ) formed profile body ( 63 ), which profile body ( 63 ) of which the body of the operation direction forming material ( 64 ), wherein the haptic signal generator ( 5 ) in a cavity ( 65 ) is sealed. Actuating device according to claim 12, characterized in that as an electric motor ( 51 ) with driven by this imbalance ( 52 ) trained haptic signal transmitter ( 5 ) partially with a shell ( 66 ) surrounded by a recess ( 67 ) in the profile body ( 63 ) forming the cavity ( 65 ) is pressed. Method for indicating an operating state of a motor vehicle locking system, in particular by means of an actuating device according to one of claims 1 to 13, wherein at least one on or in an actuating device ( 1 ) designed for a motor vehicle locking system, an approach or contact by an operator (B) sense the sensor ( 2 . 3 ) is detected, wherein after detection of a signal for displaying a selected operating state of the motor vehicle locking system, a in or on the actuator ( 1 ) provided active haptic signal transmitter ( 5 ) is pressed. A method according to claim 14, characterized in that by means of a transmitting and / or receiving device ( 41 ) a keyless entry / go locking system (separately from the motor vehicle locking system) ( 4 ), wherein an access authorization of the operator (B) by an automated dialogue between the transmitting and / or receiving device ( 41 ) and the separately formed RF-ID card ( 42 ) is detected. A method according to claim 15, characterized in that the dialog for determining the access authorization by means of the radio connection after detection of a signal to a sensor ( 2 . 3 ) is performed. Method according to one of claims 14 to 16, characterized in that two sensors (outer and inner) ( 2 . 3 ) are queried with different detection range, wherein the detection areas on the one hand the outside, a vehicle door ( 71 ) of a motor vehicle ( 7 ) facing away from a door handle ( 6 ), and on the other hand, the vehicle door ( 71 ) of the motor vehicle ( 7 ) facing the door handle ( 6 ). Method according to one of claims 14 to 17, characterized in that in the locked state of the motor vehicle locking system upon detection of a signal at the outer sensor ( 2 ) and / or on the inner sensor ( 3 ) an unlocking of the motor vehicle locking system is initiated. Method according to claim 18, characterized in that by means of the active haptic signal generator ( 5 ) the detection of the signal is displayed. Method according to one of claims 18 to 19, characterized in that by means of the active haptic signal transmitter ( 5 ) the determined access authorization of the operator (B) is displayed. Method according to one of claims 18 to 20, characterized in that by means of the active haptic signal transmitter ( 5 ) the complete mechanical release of the motor vehicle locking system is displayed. Method according to one of claims 14 to 19, characterized in that when unlocked state of the motor vehicle locking system upon detection of a signal only at the outer sensor ( 2 ) a lock of the motor vehicle locking system is initiated. A method according to claim 22, characterized in that only upon detection of a movement along the actuating device, in particular in one direction, by means of a sensor ( 2 . 3 ) a lock of the motor vehicle locking system is initiated. Method according to one of claims 22 to 23, characterized in that by means of the active haptic signal transmitter ( 5 ) the detection of the signal is displayed. Method according to one of claims 22 to 24, characterized that by means of the active haptic signal transmitter the detected Access authorization of the operator is displayed. Method according to one of claims 22 to 25, characterized that by means of the active haptic signal generator complete mechanical Lock the motor vehicle locking system is displayed.