DE102019215290A1 - Method for operating an input device of a motor vehicle - Google Patents

Abstract

The invention relates to a method (36) for operating an input device (14) of a motor vehicle (2), with a sensor (24) for detecting a movement (54) of a user, and with an output device (16) for outputting an image (20) ). An image (20) is output by means of the output device (16), and a movement (54) of a user is recorded by means of the sensor (24). During the detection of the movement (54), the part already detected is compared with a part of a pattern (48, 50), and the image (20) is modified as a function of the comparison and the pattern (48, 50). The invention also relates to an input device (14) of a motor vehicle (2).

Description

The invention relates to a method for operating an input device of a motor vehicle, which has a sensor for detecting a movement of a user and an output device for outputting an image. The invention also relates to an input device of a motor vehicle.

To increase comfort, motor vehicles have electromotive adjustment drives which comprise an electric motor and an adjustment part driven by it. It is therefore not necessary to move the adjustment part manually. An example of this are motor-operated window lifters or electromotive-operated doors. Input devices are usually provided so that the respective electromotive adjustment drive is activated. These usually have a button, it being necessary to provide a button for each of the different operating modes of the respective adjusting drive. Therefore, there are two buttons in an electromotive window lifter, the window pane being moved into a closed position by actuating one button and the window pane being moved into an open position by actuating the remaining button. Thus, two mechanical components are required, which increases assembly time and increases manufacturing costs.

Most of the time, the buttons of the electric motor-operated window lifters are mounted on the inside of the door of the motor vehicle. If the respective door can also be actuated by an electric motor, two additional buttons are required, one of which is assigned to the opening movement of the door and the remaining one is assigned to the closing movement of the door. As a result, there are a total of at least four buttons on the inside of each door, each of which has to be mounted separately, which increases manufacturing time. It is also necessary to provide a suitable space for each of these, which makes construction difficult.

An alternative is therefore to use a touchscreen instead of the buttons. A number of pictograms that symbolize the respective operating modes are displayed by means of the touchscreen. The respective adjustment drive is activated accordingly by touching the respective pictograms. It is thus possible to activate both the motorized window lifter and the motorized door drive using a single touchscreen. When touching the touchscreen, however, there is no longer any haptic delimitation for the user between the individual pictograms. It is thus possible that the user inadvertently moves his hand to another pictogram while touching a pictogram, which leads to an incorrect actuation of the adjustment drive or the actuation of another adjustment drive. Thus, comfort is reduced. As a remedy for this, it is known to use a comparatively large touchscreen, which increases manufacturing costs. It is also known to apply additional mechanical objects, such as edges, to the touchscreen so that unintentional movement of the hand from one pictogram to another is prevented. In this case, however, it is necessary to assemble the additional objects, which also increases manufacturing costs.

The invention is based on the object of specifying a particularly suitable method for operating an input device of a motor vehicle as well as a particularly suitable input device of a motor vehicle, wherein convenience is advantageously increased and / or manufacturing costs are reduced.

With regard to the method, this object is achieved according to the invention by the features of claim 1 and with regard to the input device by the features of claim 10. Advantageous further developments and refinements are the subject matter of the respective subclaims.

The method is used to operate an input device of a motor vehicle. The motor vehicle is expediently a land-based motor vehicle and, for example, a commercial vehicle such as a truck or a bus. However, the motor vehicle is particularly preferably a passenger car (passenger car).

The input device is, for example, a component of an electromotive adjustment drive or, at least in the assembled state, it is signal-connected to it, for example by means of suitable signal lines or a bus system such as a CAN bus system, a LIN bus system or a Flexray bus system. The input device is particularly suitable to be arranged in an interior of the motor vehicle in the assembled state and is suitable for this, in particular provided and set up. When the input device is actuated, in particular the associated adjustment drive is activated, which is suitably an electromotive adjustment drive and thus has an electric motor. The electric motor itself is, for example, a brushed commutator motor or, particularly preferably, a brushless direct current motor (BLDC). For example, the electric motor is connected to a gear which is, for example, self-locking and / or a worm gear. When the electric motor is energized, an adjustment part is moved along an adjustment path by means of the electric motor, with the electric motor expediently being energized in Dependent on the actuation of the input device takes place. In particular, the electromotive adjustment drive is an electromotive seat adjustment, an electromotive window lifter, an electromotive door adjustment such as an electromotive tailgate, an electromotive sliding roof or some other interior adjuster.

By means of the input device it is possible in particular to record different actuation processes / actuations, each actuation process expediently being assigned a specific adjustment drive or some other function of the motor vehicle. Each actuation is suitably assigned at least one setting of a corresponding adjustment drive or the like in a specific operating mode, in which, for example, the current is supplied to the respective electric motor in accordance with a specification.

In summary, it is particularly possible to activate several different (electromotive) adjustment drives by means of the input device or this preferably has two or more different operating modes, the selection of the operating mode being selected by means of a corresponding actuation of the input device. In summary, it is possible by means of the input device to make several inputs, each of the inputs corresponding to a specific actuation process.

The input device has a sensor. By means of the sensor it is possible to detect a movement of a user, in particular an extremity of the user, such as a hand or an arm. For example, the sensor is a camera that is or includes a stereo camera or a TOF camera (“Time of Flight”), for example. As an alternative to this, the sensor is a force sensor, a capacitive sensor which, for example, has a single electrode or several electrodes which are expediently arranged in a grid. In a further alternative, the sensor is a radar sensor, acceleration sensor or an ultrasonic sensor.

Furthermore, the input device has an output device for outputting an image. By means of the output device, it is possible to output the image with appropriate control. In particular, the image is not static here. The output device is, for example, a projector or a display. In particular, the image is projected onto a specific surface by means of the projector, for example an interior door panel and / or a window pane and / or a floor. The sensor and the output device are particularly preferably provided by means of a single common component, namely a touchscreen. Thus, only a single component is required, which reduces manufacturing costs. The input device preferably additionally comprises a control unit which is formed, for example, by means of a user-specific circuit (ASIC) or at least comprises this. The control unit preferably has a microprocessor which, for example, is designed to be programmable.

The input device is operated according to a method in which an image is output by means of the output device. The image is, for example, empty or particularly preferably it comprises a pictogram, expediently several pictograms. If an adjustment drive is to be activated by means of the input device, the pictograms here correspond to certain operating modes of the electromotive adjustment drive or drives. On the basis of the output of the image, the user of the input device can thus see how a touch or other movement is to be carried out, so that the adjustment drive is activated accordingly.

A movement of the user is recorded by means of the sensor. The movement is carried out in particular by means of a specific extremity of the user, such as his arm, hand or finger. In particular, the movement is touching the image at a certain point or at least approaching the image, in particular a certain pictogram. Here, the user performs a specific movement so that the extremity in particular is moved along a specific area of the image. At least the movement takes a certain amount of time.

While the movement is being recorded, that is to say while the user is still performing the movement, the part of the movement that has already been recorded, ie in particular the sensor data provided by means of the sensor, is compared with a part of a pattern. In other words, while the movement is being recorded, the part of the movement that has already been recorded is evaluated. This part corresponds in particular to a specific time segment or to a distance covered by the possible extremity, for example 1 cm. The pattern corresponds to a specific sequence of movements, the pattern expediently being assigned to a specific actuation process / actuation of the input device, for example the activation of a specific adjustment drive, that is, the setting of a specific adjustment drive into a certain operating mode. Depending on the comparison and the sample used, the displayed image is changed (modified). For example, a color is changed here, or at least a change in the image is visible to the user.

Based on the method, the user is given feedback as to whether the movement is already at the beginning of the movement in accordance with the pattern, so that the user can understand whether the actuation of the input device is in his interest. It is thus possible to abort a faulty movement and carry out the movement again. Thus, comfort is increased. In summary, feedback is thus given for the user, and operating errors are avoided which, for example, lead to the undesired activation of a further adjustment drive. It is not necessary to use a comparatively large sensor, which is why manufacturing costs are reduced. It is also possible to use the input device to record a large number of possible actuation processes, that is to say in particular to display a large number of pictograms by means of the image. Since the image is changed as a function of the comparison and the pattern, it is thus possible for the user to understand whether there is an incorrect actuation or whether this is carried out in accordance with the pattern. For example, the method is carried out at least partially by means of the control unit, if any, and the pattern is preferably stored in a memory of the control unit. The pattern is specified, for example, by the manufacturer of the motor vehicle or at least the input device and / or corresponds to a specific actuation of the input device.

Particularly preferably, after the detection of the movement has ended, it is compared with the complete pattern. In other words, the complete movement is also recorded. The end of the movement corresponds in particular to the hand remaining in a certain position or the removal of the hand from the image, in particular in a different spatial direction, or the end of the movement is detected when a certain period of time has been reached. The comparison thus ensures whether the complete movement was also carried out in accordance with the pattern, in particular within the scope of deviations that are caused, for example, due to a movement of the motor vehicle. Since the complete movement is compared with the complete pattern, it is thus possible to check whether the movement should actually imitate the pattern or whether there was a further movement that led to unintentional detection by means of the sensor. In this way, unintentional actuations of the input device are excluded, which increases comfort and (self) security for using the input device and therefore acceptance.

For example, if the part already captured matches the pattern within the framework of tolerances, the image is modified (changed) in such a way that a pictogram corresponding to the pattern is enlarged. This makes it easier for the user to complete the movement when the pictogram is to be touched. In particular, the tolerance range of the pattern is also enlarged here, so that touching the now enlarged pictogram at an edge also leads to a match with the pattern. In other words, the tolerance range is then also enlarged in the remaining part of the pattern. Operation is thus simplified for the user, which increases convenience.

For example, if the movement matches the complete pattern within the scope of inaccuracies and tolerances, a signal is output. Here, the inaccuracies or the tolerance are expediently dependent on the movement itself, in particular the position of the user's extremity performing the movement. The tolerance range is suitably enlarged as a function of the pattern and the first comparison. In particular, the signal is used to activate an assembly of the motor vehicle, in particular the adjustment drive, if any. In other words, if the movement corresponds to the pattern, the actuation process is detected or at least the respective actuation which corresponds to the pattern. The signal is output, for example, by means of a corresponding signal line, or a certain signal level is present at an output of the input device. The signal is particularly preferably fed into a bus system of the motor vehicle, so that the unit, in particular the adjustment drive, is then activated. Alternatively or particularly preferably in combination with this, the signal, or a further signal, is output acoustically, optically or haptically. For example, a corresponding signal light, a loudspeaker or a vibration motor or the like is actuated for this purpose. A seat is preferably vibrated here. In a further alternative, voice output is used. In particular, feedback is given to the user in this way that the movement has been carried out in accordance with the pattern. The user can thus understand that the movement was carried out in accordance with the pattern and consequently the actuation was correctly detected by means of the input device which corresponds to the pattern.

Particularly preferably, if the movement corresponds to the complete pattern, the displayed image is changed, and this corresponds in particular to a feedback. This means that the user can see directly on the image whether the movement was carried out according to the pattern. In this case, the image is particularly preferably changed independently from the pattern. Alternatively, the change takes place depending on the pattern. For example, a color of the pictogram that corresponds to the pattern, if it exists, is modified (changed) accordingly. For example, “green” is used as the color. Since the image is changed directly, it is not necessary to check other elements of the motor vehicle in order to record the optical feedback. Thus, comfort for the user is further increased.

The output of the image is particularly preferably ended after the changed image has been displayed. The termination expediently takes place after a certain period of time, for example 10 seconds, 20 seconds or 30 seconds. Thus, in particular the output device is shut down, which reduces energy consumption. As a result of the end of the display of the image, the user is informed that the movement has been detected in accordance with the pattern. Also, after the actuation process, the user usually does not want any further actuation of the input device.

It is particularly preferred if the movement does not match the pattern, the image is modified. In particular, the modification (change) takes place depending on the pattern. In this case, the representation of the pattern is preferably emphasized in the image. For example, any other areas of the image are darkened here, or a pictogram that corresponds to the pattern is shown enlarged. In particular, the tolerance range of the pattern is also modified and expediently enlarged as a function of the changed image. Due to the change, that is to say the enlargement of the pictogram and the tolerance range, it is easier for the user to carry out the movement again in accordance with the pattern, provided that the actuation is to be carried out in accordance with the pattern. In other words, based on the comparison of the already detected part of the movement with the part of the pattern, it is derived that the user would like to carry out the movement in accordance with the pattern. However, if this did not take place completely, for example because the movement was aborted, the image is changed so that it is easier to carry out the movement in accordance with the pattern. Convenience is thus increased, and multiple incorrect operation of the input device is excluded.

For example, the image is output essentially continuously by means of the output device, so that the movement of the user can essentially always be recorded and the user is supported in performing the movement. Particularly preferably, however, the image is only output when a specific condition is present, which is why the energy requirement is reduced. If the condition is not met, no image is expediently output and, in particular, a so-called “black panel” is implemented. The presence of a further movement by the user is suitably used as a condition. In other words, the further movement of the user is first recorded, and then the image is output by means of the output device. The further movement is, for example, the approach of the extremity of the user to the area where the image is output, that is to say, for example, to the possible touchscreen or the area at which the possible projector is directed. Alternatively or in combination with this, a head movement or an eye movement of the user is used as a further movement. In this case, it is particularly necessary, so that the condition is met, that the head or at least the eyes are directed towards the area in which the image can be displayed, that is to say expediently towards the possible touchscreen and / or the projection surface. The further movement is suitably recorded by means of a further sensor, for example a camera, which is aimed at the head of the user. The camera is preferably used for additional functions, for example a drowsiness warning. Thus, the manufacturing cost of the automobile is reduced. In a further alternative, a wobbling of a seat by the user is used as a further movement, which is detected in particular by means of an acceleration sensor. Depending on the vacancy, in particular the output of the image and / or the sample used takes place. In particular, if the movement corresponds to the pattern, an adjustment of the seat is changed. The signal, if any, is expediently suitably adapted for this purpose. For example, the displayed image is also changed as a function of further movement so that, for example, when the seat wobbles, a different image is displayed than when the user moves his hand in a certain area or looks in a certain direction.

For example, the comparison is made using only the single pattern. However, it is particularly preferred that there are a plurality of patterns, and one of these is selected. Appropriately, each of the patterns is assigned an actuation process of the input device or a corresponding actuation of the input device and / or a corresponding pictogram if the image comprises several pictograms. In this case, the pattern is expediently used that has the greatest correspondence with the detected part of the movement. Suitably takes place during the detection of the movement a comparison of the part already recorded with all patterns, and from these the part is selected and used whose corresponding part has the greatest correspondence with the part of the movement that has already been recorded. The image is suitably modified as a function of the comparison of the part of the movement with the part of this pattern, the modification additionally taking place as a function of this pattern. If the further comparison takes place after the end of the detection of the movement, only this pattern is expediently used further. It is thus possible to assign the input device to different adjustment drives or the like, with each of the adjustment drives or at least each operating mode of the adjustment drive being assigned different patterns. Since the comparison and the search for the pattern already takes place during the detection of the movement, feedback is available for the user relatively early so that the user can abort his movement if the determined pattern does not correspond to the desired actuation process of the input device. Thus, comfort is further increased. It is also not necessary to provide a plurality of input devices, each of which has only a single pattern. Rather, different patterns can be captured by means of a single input device, which reduces manufacturing costs. A construction of the motor vehicle is also simplified since only a single sensor and a single output device are present. The patterns are expediently designed to be country-specific and / or target group-specific and / or can be adapted by the user.

The image suitably comprises a number of pictograms, a pattern and / or an adjustment drive being appropriately assigned to each pictogram. It is particularly preferable if the number of icons is reduced when the image is modified. In particular, the pictograms that do not correspond to the pattern are removed from the image. This avoids incorrectly touching these pictograms. If the further comparison is made, then there is suitably no check with the patterns that are assigned to the hidden pictograms. It is therefore no longer possible to carry out the movement in accordance with the pattern assigned to this pictogram, if there are several, which is why undesired / incorrect actuation of the input device is avoided.

For example, after the movement has ended, in particular by means of the image, it is output to what extent the movement corresponds to the predefined pattern. In other words, there is feedback about the quality of the gesture carried out. It is thus possible for the user to improve his behavior when using it again. If the signal is output, the pattern corresponds, for example, to a presetting of a possible adjustment drive (“preset”). Thus, an adjustment part driven by means of the adjustment drive, if any, is brought into a certain predetermined position. As an alternative to this, a transfer takes place as a function of the movement, in particular as long as the corresponding movement of the user is present, that is to say for example as long as a finger or the like is in a certain position in the image. For example, in a further alternative, a status display of the adjustment drive, if any, is output by means of the image, that is to say whether it is ready for operation, for example, or whether there is an error there. It is also possible to indicate whether an object is located in the possible adjustment range of the adjustment part, that is to say, for example, whether a collision is to be expected.

For example, the display area of the image is adapted, in particular if a projector is used for this. The image is expediently displayed in an area of the user so that the image is displayed as a function of the user's position. Comfortable operation of the input device is thus possible even when a possible driver's seat is moved away from a dashboard. In other words, in particular the image is displayed as a function of the seating position and / or the size of the user.

The input device is part of a motor vehicle that is in particular land-based. The motor vehicle preferably comprises a number of wheels by means of which contact with a roadway or the like takes place. In this case, it is expediently possible to position the motor vehicle anywhere on the lane, and the motor vehicle is thus independent of rails or the like. The motor vehicle is, for example, a commercial vehicle such as a truck or a bus. The motor vehicle is particularly preferably a passenger car.

The input device is suitable, in particular provided and set up, to be mounted in an interior of the motor vehicle, and the input device comprises a sensor for detecting a movement of a user and an output device for outputting an image. Furthermore, the input device is operated according to a method in which an image is output by means of the output device. Furthermore, a movement of a user is recorded by means of the sensor, the part of the movement already recorded being compared with a part of a pattern while the movement is being recorded. Depending on the comparison and the pattern, the picture modified. The input device preferably comprises a control unit which is suitable, in particular provided and set up, to carry out the method. The control unit includes, for example, an application-specific circuit (ASIC) and / or a microprocessor, which is preferably designed to be programmable. The input device is expediently suitable, in particular provided and set up, to be coupled with further components of the motor vehicle in terms of signal technology so that a function of the motor vehicle is carried out or at least changed as a function of the actuation of the input device. An adjusting drive is suitably activated for this purpose.

The output device comprises, for example, a screen or a projector, by means of which a projection onto a corresponding surface of the motor vehicle or a floor takes place when activated. For example, a side window of the motor vehicle and / or a side paneling of a door is used as the surface. A camera, for example a stereo camera or a TOF camera, is used as the sensor for detecting the movement. As an alternative to this, a force sensor or capacitive sensor is used, which is in particular a grid sensor. In a further alternative, a radar sensor, an ultrasonic sensor or a sensor that works on the basis of an optical reflection is used as the sensor. Particularly preferably, however, the sensor and the output device are provided as a common component and are thus preferably designed as a touchscreen (touch display).

The developments and advantages carried out in connection with the method can also be applied to the input device and vice versa.

• 1 schematisch ausschnittsweise ein Kraftfahrzeug mit einer Eingabevorrichtung, die eine Ausgabevorrichtung zur Ausgabe eines Bilds aufweist,
• 2 ein Verfahren zum Betrieb der Eingabevorrichtung, und
• 3 -7 jeweils mittels der Ausgabevorrichtung ausgegebene Bilder während des Verfahrens.

An exemplary embodiment of the invention is explained in more detail below with reference to a drawing. Show in it:

• 1 a schematic section of a motor vehicle with an input device which has an output device for outputting an image,
• 2 a method for operating the input device, and
• 3 - 7th images output during the process in each case by means of the output device.

Corresponding parts are provided with the same reference symbols in all figures.

In 1 is a partial schematic of a motor vehicle 2 shown in the form of a passenger car. The car 2 has a side door 4th which is shown from the inside. The side door 4th includes a side window 6th as well as a door body 8th . The door body 8th has a guide, not shown, by means of which it is possible to move the side window 6th at least partially in the door body 8th to sink. Adjusting the side window 6th takes place by means of an electromotive window regulator, not shown, which is inserted into the door body 8th is integrated. The door body 8th is by means of several hinges 10 on a not shown body of the motor vehicle 2 rotatably hinged and in operative connection with an electric motor 12th an electromotive door adjustment (door drive). By means of the electric motor 12th a gear, not shown, is driven, which is in operative connection with the side door 4th is. Thus is the side door 4th an electric motor operated door.

Furthermore, the motor vehicle 2 an input device 14th on. The input device 14th includes three dispensers 16 , namely two projectors 18th , by means of which it is possible to display one picture at a time 20th on the side door 4th to project. One of the projectors 18th is arranged in such a way that the associated image 20th on the side window 6th is projected. With the other projector 18th becomes the picture 20th on the door body 8th projected. The remaining output device 16 is as a display 22nd designed, by means of which the picture 20th can be shown.

Furthermore, the input device 14th three sensors 24 on, each with one of the sensors 24 one of the input devices 14th assigned. The one on the display 22nd assigned sensor 24 is a resistive sensor 26th and with the display 22nd connected so that they have a common touchscreen 28 form. Using the resistive sensor 26th it is possible to touch the display 22nd and thus the picture 20th by a user of the motor vehicle 2 capture. It is thus possible to detect a movement of the user. The resistive sensor is an alternative 26th designed as a force sensor or capacitive sensor.

The sensor 24 the one on the side window 6th projecting projector 18th is assigned is as a camera 30th configured, which is a stereo camera or a TOF camera. Using the camera 30th it is possible to do this on the side window 6th projected image 20th to monitor for an approach of an extremity of the user and thus a movement of the user. The remaining sensor 24 is a capacitive sensor 32 which is designed as a grid and on the door body 8th attached as well as embedded in this. Here is the capacitive sensor 32 completely by means of the associated image 20th covered.

In summary, all sensors are 24 suitable and provided to detect a movement of a user of the motor vehicle. Here, for example, touching the respectively assigned image 20th or approaching the picture 20th by means of the respective sensor 24 recorded according to the respective technology. In the case of variants that are not shown in detail, not all of the sensors are shown 24 as well as the respectively assigned output devices 16 present, the input device 14th however, has at least one of the dispensing devices 16 and a corresponding one of the sensors 24 on. In addition, the input device 14th a control unit 34 on, by means of which an actuation of the output devices 16 as well as reading out the by means of the sensors 24 provided sensor signals takes place.

By means of the control unit 34 , which is formed by means of a user-specific circuit, is at least partially an in 2 illustrated procedure 36 carried out. In a first step 38 a further movement is made by means of a further sensor, not shown in detail 40 recorded by the user. The further movement 40 is a view of the user on the areas where the image 20th can be displayed, i.e. on the side window 6th , the display 22nd or a specific area of the door body 8th . A camera installed in a dashboard of the motor vehicle is used as a further sensor 2 is integrated, and by means of which a head movement of the driver of the motor vehicle 2 representing the user is monitored. An eye movement of the driver is also recorded here. A drowsiness warning is operated using this sensor data. In the first step 38 however, is considered a wide movement 40 the view of the possible positions of the picture 20th used. If this has happened, and thus the driver to the side door 4th looks, becomes a second step 42 carried out.

In the second step 42 is made by means of the dispensers 16 or at least one of the output devices 16 , the respective picture 20th shown. In other words, the respective output device 16 activated so the image 20th is issued. This is done by means of the projector 18th , provided the output device 16 as a projector 18th is trained, the image 20th to the side window 6th or on the door body 8th projected. Unless the output device 16 than the display 22nd is designed, this is activated so that the image 20th is visible.

One possible embodiment of the picture 20th is in 3 shown. This includes a first pictogram 44 as well as a second pictogram 46 , each of which is an arrow but pointing in different directions. The first pictogram 44 is a first pattern 48 and the second pictogram 46 a second pattern 50 assigned in a memory, not shown, of the control unit 34 are deposited. The first pattern 48 corresponds to an actuation of the input device 14th to activate the electric motor 12th so that the side door 4th is opened. The second pattern 50 also corresponds to an activation of the electric motor 12th , with this being the rotational movement of the electric motor 12th is opposite, so that the side door 4th is closed. For a variant not shown in detail are on the picture 20th There are also other pictograms, which are also arrows, but whose course is vertical. These are assigned corresponding patterns that correspond to an actuation, that is to say an activation, of the electromotive window regulator.

In a subsequent third step 52 a movement of the user is started to be detected. The movement 54 is here a stroke along the picture 20th with one finger 56 , as in 4th shown. In this example the movement is 54 parallel to the first pictogram 44 and directed in the same direction as this. Capturing the movement 54 takes place here by means of the respective sensor 24 , so the sensor 24 in the output device 16 is assigned, by means of which the image 20th is issued.

In a subsequent fourth step 58 becomes the part of the movement that has already been recorded 54 each with a corresponding part of the two patterns 48 , 50 compared. There is no correspondence of this part of the movement 54 with the second pattern 50 present as the finger 56 is moved in the opposite direction. Thus becomes the second pattern 50 not used in further proceedings. In contrast, the part of the movement that has already been recorded is correct 54 with the beginning of the first pattern 48 match, i.e. moving along the beginning of the first pictogram 44 in the direction indicated by it. The following is therefore only the first pattern 48 further considered. In summary, the two patterns become 48 , 50 that selected and used that, namely its corresponding part, the greatest correspondence with the part of the movement already recorded 54 has, so the first pattern 48 .

In a subsequent fifth step 60 becomes the image displayed so far 20th modified. The change (modification) takes place depending on the pattern, i.e. the first pattern 48 as well as depending on the comparison. Because the part of the movement 54 that has already been recorded with the corresponding part of the first pattern 48 matches, the condition is met. Thus the picture becomes 20th depending on the first sample 48 modified as in 5 shown. This becomes the second pattern 50 corresponding second pictogram 46 no longer displayed, and that first pictogram 44 that goes to the first pattern 48 corresponds, is shown enlarged. In other words, the arrow is enlarged. Thus, the number of pictograms displayed is used to modify the image 44 , 46 decreased. Thus, it is easier for the user to use the finger 56 according to the first sample 48 to move, and a distraction from the second pattern 46 does not take place.

In a subsequent sixth step 62 will be the end of the movement 54 detected. This is identified, for example, by the fact that the finger 56 from the picture 20th is moved away. In this case, the movement is now fully recorded 54 with the complete pattern, namely the selected first pattern 48 , compared. If the movement 54 with the first pattern 48 , i.e. the selected one of the two patterns 48 , 50 , matches, is a seventh step 64 carried out. In this is a signal 66 output with the signal 66 to the first pattern 48 corresponds. The signal 66 becomes the electric motor 12th or the electric motor 12th operating control unit, but at least to the electromotive door adjustment. Thus, the user's wish is transmitted to the electromotive door adjustment, the side door 4th according to the specification of the first sample 48 to adjust, so to open.

The picture shown so far will also be 20th changed. This is the color of the first pictogram 44 changed, and this is displayed in a pulsating manner, as schematically simplified in 6th shown. It is thus apparent to the user that the movement 54 with the first pattern 48 matches, and this has been recorded accordingly. Thus, the user can with one operation of the electric motor 12th calculate, i.e. energizing the electric motor 12th . After a period of 20 seconds, an eighth step is then carried out 68 carried out. This is the output of the image 20th completed. In other words, it becomes the output device 16 deactivated. Because the movement 54 the first pattern 48 has been assigned, the user initially expects an adjustment of the side door 4th , so a reaction to and its input. Due to the termination of the output of the picture 20th the energy requirement is reduced.

If in the fifth step 60 no match of movement 54 with the first pattern 48 was determined, for example because the finger 56 was not moved completely in a straight line, especially because the motor vehicle 2 was jolted, or the user was briefly distracted, a ninth work step becomes 70 carried out. In the ninth step 70 becomes the picture 20th again depending on the selected pattern, namely the first pattern 48 modified. To modify the picture 20th will, as in 7th is shown again the second pictogram 46 shown. However, this is in comparison to the representation in the second step 42 scaled down. The first pictogram 44 will continue compared to the original picture 20th shown enlarged. The two patterns 48 , 50 are based on the changed sizes of the two pictograms 44 , 46 customized. This is followed by the third step again 52 carried out. For the user it can be seen how he uses his finger 56 to perform the first pattern 48 should move, this due to the changed size of the pictograms 44 , 46 clearer than in the second step 42 is pictured. Compared to the one in the fifth step 60 shown image 20th however, also the second pictogram 46 displayed. It is namely possible that in the previous work steps the part of the movement 54 incorrectly recorded and therefore the wrong of the two patterns 48 , 50 and thus also the two pictograms 44 , 46 was selected. Thus, the user is also instructed how to move 54 should be done to the second pattern 50 to capture so the side door 4th is closed.

In summary, based on the procedure 36 a customizable, user-guided operation, with the user-guided operation in the normal state, i.e. with the in 3 shown picture 20th , is imperceptible. In the first step 38 takes place by means of the input device 14th a detection of a user process, namely the further movement. Then the switch field, namely the pictograms 44 , 46 displayed. This is followed by the movement 54 , which is thus a gesture, which is performed by the user. By means of the input device 14th becomes the movement 54 recorded and thus the attempt the finger 56 according to one of the two patterns 48 , 50 to move, i.e. to perform a corresponding gesture. By changing the image 20th a corresponding guide is provided to the user. For this purpose, for example, a color of the pictograms 44 , 46 or changed their size.

After successful execution, i.e. when the movement 54 with one of the two patterns 48 , 50 matches, the signal will 66 output and thus a switching signal is activated. In addition, there is an optical feedback, namely a renewed modification of the image 20th , as in 6th shown. It is also possible to output haptic or acoustic feedback. The output of the image is then delayed 20th completed. Because of the procedure 36 the user is thus instructed to carry out the movement 44 according to the two patterns 48 , 50 , that is, instructions on how to perform the gesture. This is done during and after the execution of the movement 54 given the user positive or negative feedback. Also takes place during the execution of the movement 54 a change to the pictograms 44 , 46 which will be adjusted accordingly.

To adjust the picture 20th for example, a distance is specified, how far the finger is 56 still has to be moved, i.e. a distance to the ideal switching point. In a further alternative, the first pictogram is 44 or the picture 20th changed so that a measure of the extent to which the movement is displayed 54 , for example vectorial, of which those pattern 48 , 50 deviates that corresponds most closely to the part of the movement that has already been recorded 54 having. In a further modification, for example, a cursor is displayed that specifies how the finger is 56 to carry out the respective pattern 48 , 50 must be moved. Another alternative is the picture 20th darkened in the area that is not used to display the respective pictogram 44 , 46 is used. In a further alternative, the respective pictogram 44 , 46 shown enlarged, and / or the respective pictogram 44 , 46 is shown wobbling so that the user can see which of the two pictograms is associated with it 44 , 46 the part of the movement carried out so far 54 corresponds. In a further alternative, depending on the part of the movement that has already been recorded 54 additional pictograms and / or symbols are displayed, or the pictogram / symbol is shown enlarged on the finger 56 too moved. It is also possible to use one of the pictograms 44 , 46 highlighted with a magnifying glass or a spotlight.

The picture 20th is output, for example, by means of projection, holographic techniques or backlit surfaces, i.e. the display 22nd . It is also possible to use optical, haptic or acoustic systems. The movement 54 is sensed electronically or acoustically via application of force or optically, for example. For this purpose, for example, a camera, a TOF camera, a stereo camera, a capacitive sensor, a capacitive grid, a touch display (touchscreen), a radar sensor, an ultrasonic sensor or an optical sensor is used, by means of which a reflection on the finger 56 is captured.

The invention is not restricted to the exemplary embodiment described above. Rather, other variants of the invention can also be derived therefrom by the person skilled in the art without departing from the subject matter of the invention. In particular, all of the individual features described in connection with the exemplary embodiment can also be combined with one another in other ways without departing from the subject matter of the invention

List of reference symbols

2

Motor vehicle

4th

Side door

6th

Side window

8th

Door body

10

hinge

12th

Electric motor

14th

Input device

16

Dispenser

18th

projector

20th

picture

22nd

Display

24

sensor

26th

resistive sensor

28

Touch screen

30th

camera

32

capacitive sensor

34

Control unit

36

Procedure

38

first step

40

further movement

42

second step

44

first pictogram

46

second pictogram

48

first pattern

50

second pattern

52

third step

54

Move

56

finger

58

fourth step

60

fifth step

62

sixth step

64

seventh step

66

signal

68

eighth step

70

ninth step

Claims (10)

Method (36) for operating an input device (14) of a motor vehicle (2), with a sensor (24) for detecting a movement (54) of a User, and with an output device (16) for outputting an image (20), in which - an image (20) is output by means of the output device (16), and - a movement (54) of a user is detected by means of the sensor (24) , wherein during the detection of the movement (54) the already detected part is compared with a part of a pattern (48, 50), and wherein the image (20) is modified as a function of the comparison and the pattern (48, 50). Method (36) according to Claim 1 , characterized in that after the detection of the movement (54) has ended, it is compared with the complete pattern (48, 50). Method (36) according to Claim 2 , characterized in that a signal (66) is output in the event of a match. Method (36) according to Claim 2 or 3 , characterized in that if there is a match, the displayed image (20) is changed. Method (36) according to Claim 4 , characterized in that after the changed image (20) has been displayed, the output of the image (20) is ended. Method (36) according to one of the Claims 2 to 5 , characterized in that if there is no match, the image (20) is modified as a function of the pattern (48, 50). Method (36) according to one of the Claims 1 to 6th , characterized in that a further movement (40) of the user is first detected. Method (36) according to one of the Claims 1 to 7th , characterized in that that pattern (48, 50) from a number of patterns (48, 50) is used which has the greatest correspondence with the detected part. Method (36) according to one of the Claims 1 to 8th , characterized in that a number of pictograms (44, 46) shown is reduced to modify the image (20). Input device (14) of a motor vehicle (2), which has a sensor (24) for detecting a movement (54) of a user, and an output device (16) for outputting an image (20), and which according to a method (36) according to one of the Claims 1 to 9 is operated.

Images