DE102020102013A1 - Operating system and method for operating a motor vehicle - Google Patents

Abstract

A control system for a motor vehicle has a steering wheel (10) for steering the motor vehicle, which comprises a steering wheel rim (22) and at least one steering wheel spoke (24), at least one input device (14, 16), which is a rear side (28) of the steering wheel (10) ), and which is immovable in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel (10), and a processing unit (18) which is connected to the at least one input device (14, 16) in a signal-transmitting manner. The processing unit (18) is designed to detect a manual input on the at least one input device (14, 16) and to convert it into a control of a vehicle function, the at least one input device (14, 16) with the processing unit (18) in this way in terms of its effectiveness is coupled that a vehicle function can be preselected and / or controlled via the input device (14, 16). A method for operating a motor vehicle is also described.

Description

The invention relates to an operating system for a motor vehicle and a method for operating a motor vehicle.

A large number of different input devices are built into conventional control systems, each of which can be used to control a specific, limited number of vehicle functions. In order to control various vehicle functions, inputs generally have to be made via various input devices, which is time-consuming and not very intuitive. In some cases, several inputs have to be made in succession on different input devices to control a vehicle function.

For this reason, important or frequently used functions can typically be reached in each case by a separate switching element, for example a button, of the operating system in the vehicle. However, since a separate switching element must be provided for each vehicle function, the space requirement increases, in particular due to the increasing number of vehicle functions in modern motor vehicles.

Since the size of the screens in the motor vehicles is increasing at the same time in order to provide the various information to a vehicle occupant, the installation space available for the switching elements is further limited.

So far, the problem has been solved, for example, by designing the screens used to be capable of input, for example capacitive, so that a vehicle occupant could use the screen provided for displaying the information at the same time as an input means. In this case, however, there is the risk that the vehicle driver will remove his hands from the steering wheel while driving in order to make an entry on the screen.

The object of the invention is to create an intuitive operating system that has a large number of controllable vehicle functions while requiring little components and space.

This object is achieved according to the invention by a control system for a motor vehicle, with a steering wheel for steering the motor vehicle, which comprises a steering wheel rim and at least one steering wheel spoke, at least one input device, which is a rear side of the steering wheel, d. H. a side of the steering wheel facing away from the driver, and which is immovable in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel. Furthermore, the operating system has a processing unit that is connected to the at least one input device in a signal-transmitting manner, the processing unit being designed to detect a manual input on the at least one input device and to convert it into a control of a vehicle function. The at least one input device is functionally coupled to the processing unit in such a way that a vehicle function can be preselected and / or controlled via the input device.

The input device differs from classic rocker switches, which have to be movable in order to fulfill their function, inter alia in that the input device is immovable in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel. The immobility of the input device ensures that no unwanted inputs are made by moving the input device, as can happen with a classic rocker switch. This contributes to a comfortable and safe operation of the operating system.

By (pre-) selecting the main function via the input device, for example, a certain sub-function set specific to the (pre-) selected main function can be selected and / or selected, from which a sub-function can then be selected and executed. The main function therefore represents a categorization or a menu item in which or in which sub-functions that are customary and specific for the category or menu item are subordinate. In this way, a large number of available sub-functions can be clearly divided, which enables intuitive and clear control of the sub-functions.

Optionally, a main function can not have any specific sub-functions, but can itself be a controllable vehicle function. This can be a particularly important vehicle function.

A vehicle function can therefore be a main function, but also a sub-function.

For example, a main function is a menu item such as “Radio”, “Media”, “Navigation”, “Telephone” or a (pre) selection of a title from a title list in “Music” or a (pre) selection of a telephone book entry from a telephone book , which then has to be confirmed (via the input device).

A sub-function can be a single function, e.g. B. "Increase volume", a certain map display or a confirmation of the preselection of the main function ("OK"), or a collective function, z. B. "Adjust volume", "High / Scroll down ”,“ Back ”to get to the previous overview, or similar.

A collective function (e.g. "Adjust volume") has two or more individual functions (e.g. "Increase volume" and "Lower volume"), with a first individual function (e.g. "Increase volume") during the Execution of a first input gesture (e.g. "pulling up") and optionally during the same input process by a second input gesture (e.g. "pulling down"), for example a second, e.g. opposite, individual function (e.g. "lowering the volume") can be executed.

A single function can be performed after an input gesture (e.g. “tap”) or during an input gesture (e.g. “tap and hold”). However, it is not possible to perform another input gesture during the input process in order to control a different individual function.

The input device can be arranged on the steering wheel spoke, on the steering wheel rim or on a base of the steering wheel. The steering wheel can be coupled to a steering column or an adapter part via the base.

In principle, the input device can be designed to be fixed to the steering wheel or to the vehicle. Fixed to the vehicle means that the input device maintains its (absolute) position regardless of the position of the steering wheel. In other words, the input device does not rotate with the steering wheel when steering. Fixed to the steering wheel means, however, that the input device rotates with the steering wheel when it is moved during steering. The position relative to the steering wheel can, however, remain.

In particular, the processing unit is set up to distinguish and recognize a selection of the main function and a selection of the main function from one another, the selection and / or the selection of the main function being made by at least one input via the input device. Thus, in the different states - selected state and selected state - of the main functions, different operating parameters, for example a preview of the sub-functions assigned to the main function, can be present.

In the case of a selection that corresponds to a preselection, the desired main function is merely "marked" via the input device. To confirm, a selection must still be made via the input device or a separate, other input device. The selection can be carried out, for example, via an input gesture or via a type of pause for a defined period of time at the selected main function.

A set of sub-functions specific to the main function can already be provided for control in the selected state of a main function. This enables a kind of “preview” of the sub-functions assigned to the main function.

The processing unit can be set up to control a specific vehicle function, which is assigned to a specific main or sub-function, at least on the basis of an input via the input device. Accordingly, certain vehicle functions can be controlled by a combined input via the input device and a separate, other input device, or certain vehicle functions can only be controlled by an input via the input device. In this way, further options for operating the operating system can be created, as a result of which the user-friendly operability of the operating system can be further increased.

According to one aspect, the input device and the processing unit are designed to recognize a number of contact points on the input device and to effect a change in an input parameter, for example a scrolling speed through the main functions and / or sub-functions, depending on the number of recognized contact points. The vehicle occupant can thus reach a desired main function more quickly. In other words, the scrolling speed increases if more fingers are recognized on the input device when scrolling, although the movement speed of the fingers is the same. This allows the operator to scroll through a list more quickly, for example a song list, a telephone book list or a menu list.

The input device and the processing unit can also be designed to detect the speed of movement of at least one finger, in particular wherein the input device and the processing unit are designed to change an input parameter, for example a scrolling speed through the main functions and based on the detected speed of movement of the at least one finger / or sub-functions. In addition to the number of detected contact points, the speed of movement of the at least one finger can also be detected and used to change the input parameter.

In one embodiment, the processing unit is set up to distinguish between different input gestures and to preselect and / or control different vehicle functions as a function of the input gestures. In this way, suitable and intuitive input gestures can be assigned to certain vehicle functions, whereby the operation of the control system is made easier or more user-friendly.

An input gesture can comprise one or more of the following gestures: tap ("tap"), double-tap ("double-tap"), tap-and-hold ("tap-and-hold"), press ("press") , Double-press ("double-press"), press-and-hold ("press-and-hold"), dragging ("drag"), wiping ("swipe"), circular movement ("circle") and backward and-Her ("Shuffle"). One or more input gestures can be performed during the input process. For example, a preselected main function can be confirmed by double-tapping or tap-and-hold, so that the corresponding sub-functions can be selected.

The input gestures are not limited to one embodiment of the input device. For example, pressing can be carried out as an input gesture in the case of a touch-sensitive surface with capacitive sensors and in the case of a push button with mechanical sensors or force sensors. As a further example, a circular movement can be carried out on a touch-sensitive surface with capacitive sensors and on a rotary actuator with mechanical sensors, for example in order to increase or decrease a volume depending on the direction of rotation.

In particular, the input device comprises a capacitive sensor system, an optical sensor system, a force sensor system and / or a mechanical sensor system, for example an electrical switch such as a microswitch, also called a “microswitch”. Various input gestures can be recognized in different ways via the corresponding sensor system, and various vehicle functions (main and / or sub-functions) can be controlled in this way.

For example, the input device has a touch-sensitive surface, in particular a capacitive touch-sensitive surface, a rotary actuator, a switch, a button and / or a key. The rotary actuator, the switch, the button and / or the button can or can be designed purely mechanically; Additionally or alternatively, a capacitive sensor system, an optical sensor system and / or a force sensor system can be assigned. A pressure-sensitive surface, which is provided on a switch, a button or a key, therefore represents a special type of touch-sensitive surface.

In principle, a force sensor system can be designed in such a way that the processing unit can recognize at least two different force strengths and distinguish them from one another, to which different functions are assigned. For example, there is only a preselection for a light force, whereas a strong force, that is, a force that is greater than that of the light force, results in a selection.

One embodiment provides that the input device is assigned at least one haptic, optical and / or acoustic feedback device.

The haptic feedback can take place actively, for example by an actuator controlled by the processing unit, such as an electric motor. In this way, different feedback patterns can be generated, which are, for example, dependent on the selected or selected vehicle function.

Additionally or alternatively, the haptic feedback can take place passively by passive feedback means arranged on the input device. In this way, an additional haptic type of feedback can be provided. In addition, the additional components for a separate active haptic feedback device can be saved. This saves costs and space.

For example, the passive feedback means comprise structural components on the input device, such as convex or concave grooves, ribs, indentations and / or bulges at different or equal distances from one another, as seen in the direction of view of the driver.

Optionally, the passive feedback means can limit areas that are assigned to individual vehicle functions. In this way, the driver can recognize purely haptically, i.e. simply by touch, where the areas on the input device assigned to the vehicle functions are located. In this way, the driver can keep his eyes on what's happening on the road.

In particular, the passive feedback means are provided on a side of the input device facing away from the driver. In this respect, the driver would have no way of seeing the structure of the passive feedback means anyway.

The optical feedback device can comprise a screen and / or a lamp which is or is connected to the processing unit in a signal-transmitting manner. The light can be integrated in the steering wheel, for example in the steering wheel rim. Of course, it can be displayed on a screen.

The acoustic feedback device can comprise a loudspeaker via which a corresponding signal tone is output.

Overall, the feedback device (s) enables or enables feedback to the vehicle occupant or operator of the operating system.

For example, the input device is designed like a web. Operation with up to four fingers at the same time on the input device can be made possible. The user-friendliness for the driver is also increased, since he does not have to take his hands off the steering wheel in order to operate the input device. Here, the input device is structurally essentially similar to a classic rocker switch, but the input device cannot be moved in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel, as is usual for a rocker switch. Accordingly, the input device cannot be used for shifting or for initiating a gear change in the motor vehicle.

It can be provided that the operating system has a second input device, in particular identical to the first input device, which is (also) assigned to the rear of the steering wheel and spatially separated from the first input device, the first input device being assigned to a first area of the rear of the steering wheel and the second input device is assigned to a second area of the rear side of the steering wheel, the areas being separated by a vertical center plane of the steering wheel. In other words, the two input devices are arranged mirror-symmetrically to a center plane of the steering wheel, in which in particular the axis of rotation of the steering wheel runs.

The first and second input devices can function independently of one another. This means that the input devices are each assigned an identical or different set of vehicle functions from which a vehicle function can be (pre) selected independently of one another by one of the two input devices. In this way, a large number of different vehicle functions can be (pre) selected using the input devices.

Alternatively, the first input device and the second input device can be functionally coupled to the processing unit in such a way that a main function can at least be preselected via the first input device and a sub-function assigned to the main function can be controlled via the second input device. The first and second input devices therefore function as a function of one another or they interact with one another in terms of functionality. In this way, intuitive operation can be achieved.

Optionally, the first input device and the second input device are functionally coupled to the processing unit in such a way that the currently performed input on one of the input devices can be continued with the other of the input devices. Accordingly, both input devices act here together as a common input device. In this way, intuitive, flexible and safe operation can be ensured, since the operator can change his operating hand during input without having to interrupt the operating process. This is particularly advantageous in the case of a manual gearbox, since the driver has to take his hand off the steering wheel to change gears.

Continuous operation of the operating system is therefore possible, since the driver initially operates the operating system with his first hand with the first input device and seamlessly operates the second input device with his second hand.

According to one aspect, a display device is provided which is embodied separately from the first input device and / or from the second input device and is connected to the processing unit. Inputs via the first and / or via the second input device can be visualized by this external display device and the operation of the operating system can thus be further facilitated. The external display device can be a main screen, for example a central screen on the dashboard or in the vehicle cockpit. The separately designed display device can also be in a head-up display, that is to say a “head-up display” in which the vehicle driver can maintain his head posture or line of sight because the corresponding information is projected into his field of vision. The information can be projected directly onto the windshield or onto a separately designed window.

The processing unit can be set up to generate a graphical user interface that includes a menu with menu items that can be at least preselected via the first and / or second input device. Each menu item can correspond to a main function that can be at least preselected via the first and / or second input device, that is, at least selectable, whereby a set of sub-functions is selected that can be entered via the first input device, the second input device and / or a separate , other input device are controllable. A graphical user interface simplifies the operation of the operating system considerably and consequently increases the ease of use of the operating system. The graphical user interface can can be displayed on the external display device.

• - Detektieren wenigstens eines Fingers eines Bedieners an wenigstens einer Eingabevorrichtung, die einer Rückseite eines Lenkrads zugeordnet und in Axialrichtung bezüglich einer zu einer Rotationsachse des Lenkrads parallelen Achse unbeweglich ist, und
• - Vorauswählen und/oder Ansteuern einer Fahrzeugfunktion mittels des wenigstens einen detektierten Fingers.

Furthermore, the object is achieved according to the invention by a method for operating a motor vehicle, with the steps:

• - Detecting at least one finger of an operator on at least one input device which is assigned to a rear side of a steering wheel and is immovable in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel, and
• - Preselecting and / or activating a vehicle function by means of the at least one detected finger.

The driver can therefore operate the input device with one hand without removing his hand from the steering wheel. In this way, intuitive, comfortable and safe operation of the motor vehicle can be ensured, in particular of the operating system of the motor vehicle.

The vehicle function can be assigned to the at least one detected finger via manual selection of the vehicle function or automatically based on the (relative) position and number of the detected fingers on the input device.

It can be provided that the vehicle function is assigned to the at least one detected finger on the basis of the relative position or the absolute position of the at least one detected finger on the input device.

When assigning the vehicle function to the at least one finger based on the relative position of the finger on the input device, the operator does not have to pay so much attention to the exact placement of the fingers on the input device, since the input areas assigned to the individual vehicle function can be larger here.

In particular, the assignment takes place automatically, which is why the operator does not have to be careful to find the correct (absolute) position for the corresponding vehicle function.

When the vehicle function is assigned to the at least one finger based on the absolute position of the finger on the input device, the input areas of the vehicle function are clearly delimited from one another, which makes it easier for the operator to recognize the correlation between the point of contact and the displayed vehicle function.

In particular, the assignment takes place manually, since the operator specifically places his finger on the absolute position assigned to the desired vehicle function on the input device.

The relative position can be defined by a relative movement of the at least one finger or by the relative position of the fingers to one another.

Alternatively, the input device can be divided into different sections which are each assigned to a vehicle function. The absolute position of a finger or several fingers in one or in several sections of the input device means that one or several vehicle function (s) are assigned to the finger or fingers.

One aspect provides that the preselected vehicle function is confirmed automatically and / or on the basis of an exerted pressure after a period of time has elapsed, in particular wherein further fingers previously resting on the input device are (must) removed to confirm the selection. With the confirmation, a selection of the vehicle function takes place. In this way, it is intuitively possible to select the desired vehicle function without having to remove the currently used hand to carry out a further input or having to use another hand to confirm the vehicle function.

Of course, the selection can also be made by performing an input gesture.

Optionally, at least one symbol can be displayed on a display device which is assigned to the preselected and / or activated vehicle function. In this way, an operator can easily and quickly recognize which main function is currently selected or which sub-functions can be controlled, for example on the basis of a preview of the sub-functions assigned to the preselected main function.

The symbol can be a menu or a menu item of the menu of a graphical user interface.

• - Vorauswählen einer Hauptfunktion mittels des wenigstens einen detektierten Fingers durch die Eingabevorrichtung, die einer ersten Eingabevorrichtung entspricht,
• - Bereitstellen einer der vorausgewählten Hauptfunktion zugeordneten Unterfunktion an einer zweiten Eingabevorrichtung, die der Rückseite des Lenkrads zugeordnet ist und die von der ersten Eingabevorrichtung räumlich getrennt ist, wobei die erste Eingabevorrichtung einem ersten Bereich der Rückseite des Lenkrads zugeordnet ist und die zweite Eingabevorrichtung einem zweiten Bereich der Rückseite des Lenkrads zugeordnet ist, wobei die Bereiche bezüglich einer vertikalen Mittelebene des Lenkrads getrennt sind, und
• - Bedienen der zweiten Eingabevorrichtung, um die Fahrzeugfunktion in Abhängigkeit der der vorausgewählten Hauptfunktion zugeordneten Unterfunktion anzusteuern.

In particular, in the step of preselecting and / or activating a vehicle function by means of the at least one detected finger, the following steps are carried out:

• - Preselecting a main function by means of the at least one detected finger through the input device, which corresponds to a first input device,
• - Providing a sub-function assigned to the preselected main function at a second input device, which is assigned to the rear of the steering wheel and which is spatially separated from the first input device, wherein the first input device is assigned to a first area of the rear of the steering wheel and the second input device is assigned to a second area of the rear of the steering wheel, the areas are separated with respect to a vertical median plane of the steering wheel, and
• - Operating the second input device in order to control the vehicle function as a function of the sub-function assigned to the preselected main function.

Accordingly, a specific vehicle function can be controlled by a combined input via the first input device and the second input device. In this way, further options for operating the operating system can be created, as a result of which the user-friendly operability of the operating system can be further increased.

Due to the locally and thematically separate selection or selection of the main functions or assigned sub-functions, a large number of available vehicle functions can be clearly controlled, which enables intuitive and clear control of the sub-functions.

The pre-selected main function can be confirmed via the sub-function assigned to it. The preselected main function is then selected via the second input device. As already explained, the sub-function that is controlled via the second input device can also be a confirmation of the preselected main function, ie an “OK” or “make a call” of the previously selected phone book entry or a “play” of the previously selected song.

In general, it is possible that the driver can operate the first input device and / or the second input device with four fingers each, namely the index finger, middle finger, ring finger and little finger (simultaneously or one after the other). The driver can thus operate an input device with one hand without removing his hand from the steering wheel.

For example, two fingers placed on the input device result in a certain activation, whereas three fingers placed on the input device result in a different activation.

In principle, as already explained above, this can also depend on the (relative) position of the fingers.

The described advantages and properties of the operating system according to the invention apply equally to the method for operating a motor vehicle and vice versa.

• - 1 eine schematische Darstellung eines Cockpits eines Kraftfahrzeugs,
• - 2 eine schematische Darstellung eines erfindungsgemäßen Bediensystems des Kraftfahrzeugs gemäß 1,
• - 3 a) bis c) schematische Darstellungen verschiedener Ausführungsvarianten und Positionierungen einer erfindungsgemäßen Eingabevorrichtung des erfindungsgemäßen Bediensystems gemäß 2,
• - 4 eine schematische Darstellung einer ersten Ausführungsform des erfindungsgemäßen Bediensystems,
• - 5 eine schematische Darstellung einer zweiten Ausführungsform des erfindungsgemäßen Bediensystems gemäß 2,
• - 6 eine schematische Darstellung einer dritten Ausführungsform des erfindungsgemäßen Bediensystems gemäß 2, und
• - 7 eine schematische Darstellung einer vierten Ausführungsform des erfindungsgemäßen Bediensystems gemäß 2.

Further advantages and properties of the invention emerge from the following description and from the accompanying drawings, to which reference is made. In the drawings show:

• - 1 a schematic representation of a cockpit of a motor vehicle,
• - 2 a schematic representation of an operating system according to the invention of the motor vehicle according to 1 ,
• - 3 a) until c ) schematic representations of different design variants and positions of an input device according to the invention of the operating system according to the invention 2 ,
• - 4th a schematic representation of a first embodiment of the operating system according to the invention,
• - 5 a schematic representation of a second embodiment of the control system according to the invention according to 2 ,
• - 6th a schematic representation of a third embodiment of the operating system according to the invention according to 2 , and
• - 7th a schematic representation of a fourth embodiment of the operating system according to the invention according to 2 .

In 1 a cockpit of a vehicle is shown.

The vehicle has various vehicle components, such as a steering wheel 10 , a driver's seat, a passenger seat, a dashboard, a center console and other components.

There is also an operating system 12th provided, can be controlled via the vehicle functions of the vehicle, for example, among other things, an entertainment system and a navigation system.

In the exemplary embodiment shown, the operating system comprises 12th a first input device 14th , a second input device 16 , at least one processing unit 18th and multiple external display devices 20th .

For example, the processing unit comprises 18th at least one processor, a data memory, a main memory and / or the like. In particular, the processing unit 18th also include multiple processors.

The first input device 14th and the second input device 16 are with the processing unit 18th connected in a signal-transmitting manner, so that an input via the first input device 14th and / or the second input device 16 from the processing unit 18th can be processed.

In addition, is the processing unit 18th with the multiple display devices 20th connected in a signal-transmitting manner, so that the corresponding information received from the processing unit 18th provided can be displayed.

The first and second input devices 14th , 16 are on a back of the steering wheel 10 arranged, so turned away from an operator.

Here are the input devices 14th , 16 spatially separated from one another, the first input device 14th a first area of the rear of the steering wheel 10 is assigned and the second input device 16 a second area on the rear of the steering wheel 10 is assigned, the areas through a vertical median plane of the steering wheel 10 are separated. In particular, the two input devices 14th , 16 arranged symmetrically to a plane of symmetry in which an axis of rotation of the steering wheel 10 lies.

In the embodiment shown, the input devices are 14th , 16 run like a bridge, which is in 2 can be seen more clearly. In addition, the input devices 14th , 16 touch-sensitive surfaces, for example capacitive surfaces, via which manual input can be made.

The input devices 14th , 16 are in the axial direction with respect to the axis of rotation of the steering wheel 10 parallel axis immobile.

As external display devices 20th are in 1 two screens 20.1 , 20.2 provided in the dashboard, and a screen of a head-up display 20.3 (HUD) also serves as a display device 20th .

The number of input devices 14th , 16 is only to be understood as an example. The operating system 12th can also only with the first or only with the second input device 14th , 16 or any other number of first and / or second input devices 14th , 16 be executed.

Also the number of external display devices 20th is to be understood as an example. The operating system 12th can also have no or any other number of external display devices 20th exhibit.

Via the input devices 14th , 16 inputs can be made by an operator, which are made by the processing unit 18th processed and optionally on at least one of the external display devices 20th are displayed.

In 2 is the operating system 12th shown in more detail. The operating system is for the sake of clarity 12th here with only one external display device 20th shown.

The steering wheel 10 has a steering wheel rim in the embodiment shown 22nd , several steering wheel spokes 24 and a middle part 26th on, in which, for example, an airbag can be housed.

The steering wheel 10 , especially the steering wheel rim 22nd , defines a plane that is a first side 28 and one of the first page 28 opposite second side 30th having.

The first page corresponds here 28 a back of the steering wheel 10 pointing away from an operator and the second page 30th corresponds to a front of the steering wheel 10 facing the operator.

The input devices 14th , 16 have, as already explained, touch-sensitive surfaces on the first side 28 are assigned, i.e. point away from the operator with their active area. In this respect, the input devices are 14th , 16 on the back of the steering wheel 10 , especially on the steering wheel spokes 24 , appropriate.

The training and installation of the input devices 14th , 16 is only to be understood as an example. The input devices 14th , 16 can have any other shape, function, or positioning. Examples of this are in the 3a until 3c shown.

According to 3a can use the input devices 14th , 16 (as separately designed switching elements) on the steering wheel spokes 24 be attached. The input devices 14th , 16 in the steering wheel spokes 24 be integrated.

In particular, the input devices 14th , 16 (as separately designed switching elements) also on the steering wheel rim 22nd ( 3b) or at a base of the steering wheel 20th ( 3c ), being the first page 28 , the back of the steering wheel 10 , are assigned or their user interface points away from the operator or driver.

In other words, the first input device can 14th and / or the second input device 16 elsewhere on the steering wheel 10 be arranged, for example in the Steering wheel spoke 24 or in the steering wheel rim 22nd be integrated.

It is also conceivable that the first input device 14th and / or the second input device 16 are or is attached to an (essentially) immovable part of the cockpit so that they do not interfere with the steering wheel 10 . This is also used as a vehicle-fixed arrangement of the first and / or the second input device 14th , 16 denotes because the absolute position of the first and / or the second input device 14th , 16 is maintained regardless of the steering wheel position.

For example, the first and / or the second input device can 14th , 16 a capacitive sensor system, an optical sensor system, a force sensor system or a mechanical sensor system. Also a combination of different sensors per input device 14th , 16 is possible. Furthermore, the input devices 14th , 16 each have different sensors.

Instead of or in addition to the touch-sensitive surface, the first and / or the second input device can 14th , 16 for example have one or more mechanical buttons, mechanical wheels or the like. Correspondingly, of course, the shape can also deviate from a web-like shape.

It can also be provided that the first input device 14th and / or the second input device 16 a haptic, optical and / or acoustic feedback device 34 are assigned or is.

The haptic feedback through the feedback device 34 can take place actively, for example by one of the processing unit 18th controlled actuator, in particular an electric motor.

Additionally or alternatively, the haptic feedback can take place passively, for example by means of the first input device 14th and / or the second input device 16 arranged passive feedback means, such as depressions, grooves or projections, which the operator of the operating system 12th can be detected haptically when this is the corresponding input device 14th , 16 actuated.

The processing unit 18th is in signal or data connection 32 with the steering wheel 10 , especially with the input devices 14th , 16 , and the external display device 20th . The signal or data transmission can be wired or wireless.

With the external display device 20th can input via the first input device 14th and / or the second input device 16 can be visualized.

The following describes the general operation of the operating system 12th explained. In the 5 until 7th are special variants of the operation of the operating system 12th described.

To operate the operating system 12th the operator makes an input on one of the input devices 14th , 16 with one or more fingers, in that the operator places the at least one finger on the touch-sensitive surface.

The input is made via the processing unit 18th at least one main function is preselected.

A preselection here corresponds to a selection of the main function. The preselection can be confirmed in a further input step, which corresponds to a selection of the main function. The processing unit 18th is able to distinguish and recognize a selection of the main function and a selection of the main function.

When making a selection, the selection must also be confirmed. The confirmation can take place, for example, via a period of time, a further input and / or a removal of a finger assigned to the main function.

By (pre) selecting the main function via one of the input devices 14th , 16 is a certain sub-function set specific to the preselected main function via the corresponding input device 14th , 16 controllable. The main function accordingly represents a categorization or a menu item in which or in which the sub-functions customary and specific for the category or the menu item are classified.

Above, the input for (pre-) selecting the main functions was only made via one of the input devices 14th , 16 described. The operating system 12th can therefore only one of the input devices 14th , 16 include.

In the variant shown with two input devices 14th , 16 are both input devices 14th , 16 for example coupled as a function of one another, ie the operation of the first input device 14th has an influence on the operation of the second input device 16 .

For example, the operator uses the second input device on the right 16 on Scrolling through the main functions carried out, which, however, has to be interrupted, for example due to a necessary switching process with a gear stick. The operator can then start scrolling at the point where the scrolling was canceled with the first input device on the left 14th continue. Both input devices act accordingly 14th , 16 here together as a common input device.

It can also be provided that one of the two input devices 14th , 16 the main functions and the other of the two input devices 14th , 16 is assigned to the sub-functions. That means that through one of the two input devices 14th , 16 one main function can be (pre) selected, and through the other of the two input devices 14th , 16 one of the sub-functions specific to the (pre-) selected main function can be controlled.

The specific sub-functions assigned to the main function are activated by one of the two input devices after the (pre) selection of the main function 14th , 16 the other of the two input devices 14th , 16 provided and can be input via the other of the two input devices 14th , 16 can be controlled.

The sub-functions assigned to the main function can (additionally) be made available optically by displaying the available sub-functions on the external display device 20th are displayed. This is also clear from the 5 until 7th emerged.

The input devices 14th , 16 are accordingly linked to one another in terms of their effectiveness. In other words, the two input devices act 14th , 16 together.

As an alternative variant, the input devices 14th , 16 can also be operated independently of each other. That means the input devices 14th , 16 a mutually identical or different set of main functions is assigned, from which a main function is assigned independently of one another by one of the two input devices 14th , 16 can be (pre) selected. For example, the left first input device 14th only assigned main functions that relate to the “media” area, such as “telephone”, “radio”, “music” etc., whereas the second input device on the right 16 only main functions that affect other vehicle functions of the vehicle are assigned, for example "air conditioning", "navigation", "system settings" etc.

The input devices 14th , 16 are accordingly decoupled from a functional point of view.

The core idea of the operating system 12th or the procedure for operating the operating system 12th is therefore the individual or combined operation of the operating system 12th with the one at the back 28 of the steering wheel 10 provided first input device 14th and / or with the one on the back 28 of the steering wheel 10 provided second input device 16 .

In one embodiment according to 4th can use the input devices 14th , 16 each has a front input device 35 be assigned to the front of the steering wheel 10 , i.e. on the side of the steering wheel facing the operator 10 , are arranged.

Accordingly, the input devices are 14th , 16 and the front input devices 35 on opposite sides of the steering wheel 10 intended.

The front input devices 35 also have touch-sensitive surfaces, for example capacitive surfaces, which can also be used for manual input.

For example, by an input via one of the two front input devices 35 a main function is (pre-) selected, and the sub-functions assigned to the (pre-) selected main function can be entered via an input of the respective front-side input device 35 associated input device 14th , 16 can be controlled.

Alternatively, by an input via one of the two input devices 14th , 16 a main function is (pre-) selected, and the sub-functions assigned to the (pre-) selected main function can be entered via the respective input device 14th , 16 associated front input device 35 can be controlled.

The input devices 14th , 16 are accordingly each with their associated front input device 35 via the processing unit 18th Effectively coupled.

The operating system 12th or the procedure for operating the operating system 12th there is thus a combined operation of the input device 14th , 16 and the associated front input device 35 underlying.

How to operate with the first input device 14th and / or the second input device 16 described, the input devices 14th , 16 together with the respectively assigned front input device 35 can be operated independently or independently of each other.

One or both of the front input devices 35 may have an internal display device. This can be designed to be touch-sensitive, for example, and thus form a touch screen.

The main functions available for (pre-) selection or the sub-functions assigned to the already selected or selected main function can be visualized on the internal display device.

The properties, features and variants of the input devices described above 14th , 16 basically apply equally to the front input devices 35 .

In the 5 until 7th are special variants of the operation of the operating system 12th - without the use of front input devices 35 - shown.

This is where the input devices point 14th , 16 touch-sensitive surfaces that are dependent or independently operable.

In addition, the input devices are 14th , 16 with the external display device 20th coupled.

It goes without saying that those in the 5 until 7th The embodiments shown are only to be understood as examples and the individual components of the operating system 12th may also have other properties, features and modes of operation - as explained above.

In a first operating variant of the operating system 12th according to 5 is each an input device 14th , 16 a main set of functions 36 assigned, with the main sets of functions 36 five main functions that are identical to each other 38 have, for example “climate control”, “music”, “navigation”, “telephone” and “assistance systems”, in particular “driver assistance systems”.

Furthermore, for example, different driving modes can be activated by the first input device 14th and / or second input device 16 can be controlled.

Here is one of the input devices 14th , 16 in the number of main functions 38 in the main set of functions 36 corresponding sections 40 virtually and optionally structurally, for example by passive haptic feedback means such as depressions and / or elevations.

The processing unit 18th is set up so that it has a graphical user interface 41 on the external display device 20th which generates the main sets of functions 36 as a menu with the individual main functions 38 as menu items.

As soon as the operator puts a finger on the first input device 14th the processing unit detects 18th with the first input device 14th a point of contact 42 on the touch-sensitive surface.

Depending on the section 40 the point of contact 42 is located, one is assigned to the respective section 40 assigned main function 38 selected as it is in 5 with several marking lines around the corresponding main function 38 is shown.

Already in a selected state of a main function 38 can the main function 38 specific sub-functions 44 , in particular as a preview, on the external display device 20th can be visualized.

There can also be multiple fingers on the first input device 14th and so several points of contact 42 in different sections 40 respectively.

The selection of a selected main function 38 for example, by removing the finger from the section 40 the assigned, selected main function 38 , a certain gesture, e.g. B. "Tap" or "Press", in particular with a higher force, or by staying in the selected state for a certain period of time.

If there are several points of contact 42 in different sections 40 and thereby several main functions 38 are selected, a selection of a main function 38 also by removing your fingers from the sections 40 the main functions 38 that should not be selected, as described above.

The (pre) selection of the main functions 38 is therefore dependent on an absolute position of the point of contact 42 on the first input device 14th . Or, in other words, the main function assigned to the at least one of the detected fingers 38 due to the absolute position of the finger on the first input device 14th assigned.

It can be provided that by a specific gesture and / or by a specific number of points of contact 42 a change in the menu of the graphical user interface 41 is initiated.

For example, you can “swipe” your finger over several sections 40 a replacement of the currently listed main functions 38 through other main functions 38 effect.

After selecting a main function 38 become the main function 38 specific sub-functions 44 the sections 40 the first input device 14th assigned. Optionally, the sub-functions 44 on the external display device 20th are displayed.

A sub-function 44 can then, as with the (pre-) selection of a main function, by means of a gesture, for example “tap” or “press”, dwell for a certain period of time or remove the fingers from the sections 40 that should not be selected can be controlled.

Analogous to the main functions, it can be provided that by a specific gesture and / or by a specific number of points of contact 42 a change in the menu of the graphical user interface 41 is initiated.

In the 5 shown sub-functions 44 are all individual functions.

A single function can after a gesture, e.g. B. "Typing", or during a gesture, z. B. "Tap and hold" can be performed. However, it is not possible to perform another gesture during the input process in order to control another individual function.

Two or more individual functions can be combined in a collective function. A collective function accordingly has two or more individual functions, with a first individual function being carried out while a first gesture is being carried out (e.g. "pulling up") and optionally during the same input process by a second input gesture (e.g., "pulling down") in the opposite direction. a second, for example opposite, individual function can be performed.

Above only the operation with the first input device was mentioned 14th received. Of course, both input devices can also be operated 14th , 16 respectively.

The input devices 14th , 16 be dependent or independent of one another, as already described in the descriptions for 2 explained.

When the two input devices are dependent 14th , 16 the two input devices 14th , 16 act as a common input device, the input process on one of the input devices 14th , 16 at any point in time from the other of the input devices 14th , 16 can be continued.

Alternatively, one of the input devices 14th , 16 a (pre) selection of the main functions 38 and through the other of the input devices 14th , 16 a selection of a sub-function 44 respectively.

In a (pre-) selected state of a main function 38 via one of the input devices 14th , 16 can the main function 38 specific sub-functions 44 the other of the input devices 14th , 16 assigned and, in particular, in an analogous manner to the (pre) selection of the main function 38 , can be controlled. Confirmation or selection of one through one of the input devices 14th , 16 selected main function 38 can be done here by activating a sub-function 44 through the other of the input devices 14th , 16 respectively.

With independent input devices 14th , 16 set the two input devices 14th , 16 each represents its own, fully operable input device.

The operating concept described above with independent input devices 14th , 16 is explained below using the in 5 illustrated specific example.

An operator places one of his left fingers on the top of the first input device 14th counted fifth section 40 the left first input device 14th and one of his right fingers on the second section 40 the right second input device 16 .

On the one hand, this becomes the main function 38 "Assistance systems" - on the left in the graphical user interface 41 the external display device 20th - and on the other hand the main function 38 "Music" - on the right in the graphical user interface 41 the external display device 20th - selected.

The selected main functions are optional 38 by making a selection gesture, such as “tap” or “press”, by removing your finger from the section 40 the selected main function 38 or confirmed by a period of time and thus selected.

During or shortly after the preselection or during or shortly after the selection are sub-functions 44 according to the (pre-) selected main function 38 , especially in an analogous way to display the main functions 38 , on the external display device 20th displayed as out 5 becomes clear.

Thereby (each) section 40 of the input devices 14th , 16 one of the (pre-) selected main functions 38 corresponding sub-function 44 assigned.

For the main function 38 “Assistance systems” are the sub-functions, starting at the top 44 "Lane departure warning", "Distance control assistant", "Increase cruise control speed", "Reduce cruise control speed" and the standard sub-function "Undo or exit".

For the main function 38 Starting at the top, “music” is the sub-functions 44 Volume up, volume down, next track, previous track, and undo or exit.

A selection of a sub-function 44 can be like the (pre) selection of a main function 38 respectively.

As mentioned above, these are the sub-functions shown 44 all individual functions.

A single function can after a gesture, e.g. B. "Typing", or during a gesture, z. B. "Tap and hold" can be performed.

For example, by “tapping” on “Increase cruise control speed”, the speed is gradually increased with each “tap”, whereby the speed is increased more quickly and consistently while stopping by “tapping and holding”.

“Tapping” on “next track” jumps to the next track, while “tapping and holding” allows the current track to be fast-forwarded.

However, it is not possible to perform another gesture during the input process in order to control another individual function.

Alternatively, one or more related sub-functions 44 , for example "increase speed control" and "decrease speed control", "increase volume" and "decrease volume" or "next track" and "previous track", can be designed as a collective function.

For example, the volume can be increased while “swiping up” and optionally “swiping” down in the current input process, which reduces the volume while “swiping down”.

With dependent input devices 14th , 16 can in the left area of the display device 20th the the sections 40 the left first input device 14th assigned main functions 38 be displayed and in the right area of the display device 20th that of the (pre-) selected main function 38 specific, the sections 40 the right second input device 16 assigned sub-functions 44 be displayed. The (pre) selection of the main functions takes place accordingly 38 through the left first input device 14th and the control of the (pre-) selected main function 38 specific sub-functions 44 through the right second input device 16 .

A second operating variant of the operating system 12th according to 6th is similar to the first operating variant.

Here, however, is the number of major functions 38 of a main set of functions 36 does not affect the number of virtual sections of the input devices 14th , 16 limited, but the main set of functions 36 is per input device 14th , 16 set up as a kind of endless list ("role").

With independent input devices 14th , 16 can use the endless lists of the two input devices 14th , 16 main functions identical to one another 38 exhibit.

The processing unit 18th is designed so that it has a graphical user interface 41 on the external display device 20th which generates the main sets of functions 36 as a menu with the individual main functions 38 as menu items.

As soon as the operator presses one or more fingers on the first input device 14th the processing unit detects 18th with the first input device 14th a point of contact 42 or several points of contact 42 .

It can be provided that the start selection of a main function 38 depending on the touch position on the first input device 14th is.

Alternatively, the start selection can always be the same, in particular individually adjustable, “default” main function 38 or the last active main function 38 .

When the point of contact 42 in the upper area of the first input device 14th is more likely to be at the top of the graphical user interface menu 41 main function located 38 selected to start.

With a gesture, for example "wipe" or "swipe", the Main functions 38 scrolled and one main function one after the other 38 be selected.

It is conceivable that depending on a number of contact points 42 that perform the scroll gesture, an input parameter can be changed. An input parameter can, for example, be a scrolling speed through the menu of the main functions 38 being.

The input parameter, for example the scrolling speed, can additionally or alternatively as a function of the movement speed of the at least one finger via the corresponding input device 14th to be changed.

Alternatively, for example, a mechanical wheel and / or mechanical keys can be used instead of a touch-sensitive surface.

Already in a selected state of a main function 38 can the main function 38 specific sub-functions 44 , in particular as a preview, on the external display device 20th can be visualized.

Alternatively, those of the main function 38 specific sub-functions 44 only after selecting the relevant main function 38 on the external display device 20th can be visualized.

The selection of a selected main function 38 can, for example, by removing the finger from the first input device 14th , a certain gesture, e.g. B. "Tap" or "Press", or by staying in the selected state for a certain period of time.

The (pre) selection of the main functions 38 is therefore dependent on the relative movement of the point of contact 42 on the first input device 14th .

Or in other words, the main function assigned to the detected finger 38 due to the relative position or the relative movement of the finger on the first input device 14th assigned.

In this respect, it is not necessary for the operator to determine the absolute position of the relevant main function 38 finds as the corresponding main function 38 is determined based on a relative position or relative movement of the at least one finger, regardless of the absolute position at which this takes place.

After selecting a main function 38 can via the first input device 14th one of the main function 38 assigned specific sub-functions 44 , as in the (pre) selection of a main function, controlled by a gesture, for example “tap” or “press” or a dwell for a certain period of time. Optionally, the sub-functions 44 , especially in an identical way to the main functions 38 (Endless list) on the external display device 20th are displayed.

Regarding the sub-functions 44 also refer to the explanations for the first operating variant 5 referenced.

Above only the operation with the first input device was mentioned 14th received. Of course, both input devices can also be operated 14th , 16 respectively.

The input devices 14th , 16 be dependent or independent of one another, as already described in the descriptions of the 2 and 5 explained.

When the two input devices are dependent 14th , 16 the two input devices 14th , 16 act as a common input device, the input process on one of the input devices 14th , 16 at any point in time from the other of the input devices 14th , 16 can be continued.

Alternatively, one of the input devices 14th , 16 a (pre) selection of the main functions 38 and through the other of the input devices 14th , 16 a selection of a sub-function 44 respectively.

In a (pre-) selected state of a main function 38 via one of the input devices 14th , 16 can the main function 38 specific sub-functions 44 the other of the input devices 14th , 16 assigned and, in particular, in an analogous manner to the (pre) selection of the main function 38 , can be controlled. Confirmation or selection of one through one of the input devices 14th , 16 selected main function 38 can be done here by activating a sub-function 44 through the other of the input devices 14th , 16 respectively.

With independent input devices 14th , 16 set the two input devices 14th , 16 each represents its own, fully operable input device.

The operating concept described above with independent input devices 14th , 16 is explained below using the in 6th illustrated specific example.

An operator places one of his left fingers on an area of the left first input device 14th and one of his right fingers on an area of the right second input device 16 .

On the one hand, this becomes one of the touch position of the left first input device 14th corresponding main function 38 in the left menu of the graphical user interface 41 the external display device 20th selected to start, and on the other hand, one of the touch position of the right first input device is selected 14th corresponding main function 38 selected in the right menu to start.

It can be provided that the start selection of a main function 38 depending on the touch position on the first input device 14th is.

Alternatively, the start selection can always be the same, in particular individually adjustable, “default” main function 38 or the last active main function 38 .

The operator then “swipes” his left and / or right finger in the direction of the desired main functions 38 - in this case the main functions 38 "Assistance systems" or "music" - and selects them as it is in 6th with several marking lines around the corresponding main functions 38 is shown.

The selected main functions are optional 38 by making a selection gesture, such as “tap” or “press”, by removing your finger from the section 40 the selected main function 38 or confirmed by a period of time and thus selected.

During or shortly after the preselection or during or shortly after the selection are sub-functions 44 according to the (pre-) selected main function 38 , especially in an analogous way to display the main functions 38 (Endless list) on the external display device 20th displayed as out 6th becomes clear.

This creates an endless list of the main functions 38 specific sub-functions 44 the input devices 14th , 16 "Assigned".

A selection of a sub-function 44 can be like the (pre) selection of a main function 38 respectively.

To the descriptions of the main functions 38 and sub-functions 44 (Individual functions and collective functions) refer to the explanations for the first operating variant 5 referenced.

With dependent input devices 14th , 16 can in the left area of the display device 20th that of the left first input device 14th assigned endless list of main functions 38 be displayed and in the right area of the display device 20th that of the (pre-) selected main function 38 specific, the right second input device 16 assigned endless list of sub-functions 44 be displayed. The (pre) selection of the main functions takes place accordingly 38 through the left first input device 14th and the control of the (pre-) selected main function 38 specific sub-functions 44 through the right second input device 16 .

A third operating variant of the operating system 12th according to 7th is similar to the first operating variant.

Here, however, are the main functions 38 of a main set of functions 36 not virtual sections 40 the first and / or second input device 14th , 16 assigned, but the at least one main function 38 becomes at least one point of contact 42 of the at least one of the first and second input devices, respectively 14th , 16 assigned to touching finger.

The processing unit 18th is designed so that it has a graphical user interface 41 on the external display device 20th generated that the the points of contact 42 assigned main functions 38 visualized.

As soon as the operator presses one or more fingers on the first input device 14th the processing unit detects 18th with the first input device 14th a point of contact 42 or several points of contact 42 .

Every point of contact 42 becomes a main function 38 which is then selected.

On the external display device 20th only the selected main functions become 38 displayed. Alternatively, the main functions not selected can also be used 38 be displayed and the selected main functions 38 highlighted in some way.

It can be provided that the start selection of one or more main function (s) 38 depending on the position of the point of contact 42 or the points of contact 42 on the first input device 14th is.

For example, when the point of contact 42 or the points of contact 42 in the upper area of the first input device 14th lies or lie, one or more will be more in the upper area of the Graphical user interface menus 41 main function (s) located 38 selected to start. This can be done in the menu before touching the first input devices 14th already main function sets 36 be displayed.

Alternatively, the start selection can always be the same, in particular individually adjustable, “default” main function 38 or the last active main function 38 .

Already in a selected state of a main function 38 can the main function 38 specific sub-functions 44 , in particular as a preview, on the external display device 20th can be visualized.

There can also be multiple fingers on the first input device 14th and so several points of contact 42 generate so several main functions 38 be selected.

The processing unit 18th can then detect how many fingers are on the input device 14th , i.e. rest on the touch-sensitive surface. Here, each recognized finger can have a corresponding main function, in particular based on the relative position of the fingers 38 be assigned.

In particular, the relative position of the finger in relation to the input device 14th recognized, i.e. the top or bottom finger on the touch-sensitive surface; regardless of whether the respective finger is the index finger or the middle finger.

Alternatively, those of the main function 38 specific sub-functions 44 only after selecting the relevant main function 38 on the external display device 20th can be visualized.

The selection of a selected main function 38 can, for example, by removing the finger of the assigned, selected main function 38 , a certain gesture, e.g. B. "Tap" or "Press", or by staying in the selected state for a certain period of time.

If there are several points of contact 42 and thereby several main functions 38 are selected, a selection of a main function 38 also done by removing the fingers, which are the main functions 38 that are not to be selected.

The (pre) selection of the main functions 38 is therefore dependent on a relative position of the point of contact 42 or the points of contact 42 on the first input device 14th . Or, in other words, the main function assigned to the at least one of the detected fingers 38 due to the absolute position of the finger on the first input device 14th assigned.

It can be provided that a change in the menu of the graphical user interface is made by a specific gesture 41 is initiated. For example, a “swipe” of the finger or the fingers can replace the currently selected main functions 38 through other main functions 38 effect.

Regarding the sub-functions 44 refer to the explanations for the first operating variant 5 referenced.

Above only the operation with the first input device was mentioned 14th received. Of course, the operation can also be carried out simultaneously on both input devices 14th , 16 respectively.

The input devices 14th , 16 be dependent or independent of one another, as already described in the descriptions of the 2 , 5 and 6th explained.

When the two input devices are dependent 14th , 16 the two input devices 14th , 16 act as a common input device, the input process on one of the input devices 14th , 16 at any point in time from the other of the input devices 14th , 16 can be continued.

Alternatively, one of the input devices 14th , 16 a (pre) selection of the main functions 38 and through the other of the input devices 14th , 16 a selection of a sub-function 44 respectively.

In a (pre-) selected state of a main function 38 via one of the input devices 14th , 16 can the main function 38 specific sub-functions 44 the other of the input devices 14th , 16 assigned and, in particular, in an analogous manner to the (pre) selection of the main function 38 , can be controlled. Confirmation or selection of one through one of the input devices 14th , 16 selected main function 38 can be done here by activating a sub-function 44 through the other of the input devices 14th , 16 respectively.

With independent input devices 14th , 16 set the two input devices 14th , 16 each represents its own, fully operable input device.

The operating concept described above with independent input devices 14th , 16 will be in Following using the in 7th illustrated specific example.

An operator places three of his left fingers on a lower area of the left first input device 14th and two of his right fingers on an upper region of the right second input device 16 .

On the one hand, this creates three of the points of contact 42 the left first input device 14th corresponding main functions 38 ("Navigation", "Telephone"&"Assistancesystems") in the left menu of the graphical user interface 41 the external display device 20th selected at the start and only these are displayed.

Second, there are two of the points of contact 42 the right second input device 16 corresponding main functions 38 ("Climate"&"Music") selected in the right menu at the start and only these are displayed.

With a selection gesture, for example “tap” or “press”, by removing the finger of the main function to be selected 38 or by removing the fingers of the main functions not to be selected 38 become the main functions you want 38 selected.

In 7th are the (pre-) selected main functions 38 ("Assistance systems"&"Music") with several lines around the corresponding main function 38 shown.

During or shortly after the preselection or during or shortly after the selection are sub-functions 44 according to the (pre-) selected main function 38 , especially in an analogous way to display the main functions 38 (Assignment to the touching finger (s)) on the external display device 20th displayed as out 7th becomes clear.

The (pre) selected main functions 38 specific sub-functions 44 the points of contact 42 on the input devices 14th , 16 assigned, the number of points of contact 42 for (pre) selecting the sub-functions 44 different from the number of points of contact 42 for (pre) selecting the main functions 38 can be.

In the case under consideration, on the first input device 14th four points of contact 42 generated (in 7th not shown), each of which is one of the through the first input device 14th (pre-) selected main function 38 ("Assistance systems") specific sub-function 44 assigned and on the external display device 20th is shown. Starting from the top, these are the sub-functions 44 "Distance control assistant", "Increase cruise control speed", "Reduce cruise control speed" and the standard sub-function "Undo or exit".

On the second input device 16 become three points of contact 42 generated (in 7th not shown), each of which is one of the through the second input device 16 (pre-) selected main function 38 (“Music”) specific sub-function 44 assigned and on the external display device 20th is shown. Starting from the top, these are the sub-functions 44 "Increase volume", "Decrease volume" and "Next track".

A selection of a sub-function 44 can be like the (pre) selection of a main function 38 respectively.

To the descriptions of the main functions 38 and sub-functions 44 (Individual functions and collective functions) refer to the explanations for the first operating variant 5 referenced.

With dependent input devices 14th , 16 can in the left area of the display device 20th the points of contact 42 on the left first input device 14th assigned main functions 38 be displayed and in the right area of the display device 20th that of the (pre-) selected main function 38 specific, the points of contact 42 on the right second input device 16 assigned sub-functions 44 be displayed. The (pre) selection of the main functions takes place accordingly 38 through the left first input device 14th and the control of the (pre-) selected main function 38 assigned specific sub-functions 44 through the right second input device 16 .

The described properties, features and modes of operation of all the control systems described above can of course be freely combined with one another, exchanged or the like.

For example, the (pre) selection of a main function 38 by means of an operating variant (e.g. by placing a finger on a section 40 the first and / or second input device 14th , 16 ) and the selection or activation of one of the (pre-) selected main functions 38 specific subfunction 44 by another operating variant (e.g. scrolling through an endless list of sub-functions 44 ) respectively. The main functions can also be displayed accordingly 38 and sub-functions 44 on the display device 20th be different.

Claims (19)

Control system for a motor vehicle, with a steering wheel (10) for steering the motor vehicle, which comprises a steering wheel rim (22) and at least one steering wheel spoke (24), at least one input device (14, 16) which is assigned to a rear side (28) of the steering wheel (10) and which is immovable in the axial direction with respect to an axis parallel to an axis of rotation of the steering wheel (10), and a processing unit (18) which is connected to the at least one input device (14, 16) in a signal-transmitting manner, the processing unit (18) being designed to detect a manual input on the at least one input device (14, 16) and to activate a Implement vehicle function (38, 44), the at least one input device (14, 16) being functionally coupled to the processing unit (18) in such a way that a vehicle function (38, 44) can be preselected and / or controlled via the input device (14, 16). Operating system according to Claim 1 , characterized in that the processing unit (18) is set up to distinguish and recognize a selection of the main function (38) and a selection of the main function (38), the selection and / or the selection of the main function (38) being carried out by at least an input is made via the input device (14, 16). Operating system according to Claim 1 or 2 , characterized in that the input device (14, 16) and the processing unit (18) are designed to recognize a number of contact points (42) on the input device (14, 16) and depending on the number of recognized contact points (42) one To change an input parameter. Operating system according to one of the preceding claims, characterized in that the processing unit (18) is set up to differentiate between different input gestures and to preselect and / or control different vehicle functions (38, 44) as a function of the input gestures. Operating system according to Claim 1 , characterized in that the input device (14, 16) comprises a capacitive sensor system, an optical sensor system, a force sensor system and / or a mechanical sensor system. Operating system according to Claim 1 or 2 , characterized in that the input device (14, 16) is assigned at least one haptic, optical and / or acoustic feedback device (34). Operating system according to one of the preceding claims, characterized in that the input device (14, 16) has passive feedback means. Operating system according to one of the preceding claims, characterized in that the input device (14, 16) is designed like a web. Control system according to one of the preceding claims, characterized in that the control system (12) has a second input device (16) which is assigned to the rear side (28) of the steering wheel (10) and spatially separated from the first input device (14), the The first input device (14) is assigned to a first area of the rear side (28) of the steering wheel (10) and the second input device (16) is assigned to a second area of the rear side (28) of the steering wheel (10), the areas being defined by a vertical center plane of the steering wheel (10) are separated. Operating system according to Claim 9 , characterized in that the first input device (14) and the second input device (16) are functionally coupled to the processing unit (18) in such a way that a main function (38) can at least be preselected via the first input device (14) and via the second input device (16) a sub-function (44) assigned to the main function (38) can be controlled. Operating system according to Claim 9 , characterized in that the first input device (14) and the second input device (16) are functionally coupled to the processing unit (18) such that the currently performed input on one of the input devices (14, 16) with the other of the input devices (14 , 16) can be continued. Operating system according to one of the preceding claims, characterized in that a display device (20) is provided which is separate from the first input device (14) and / or from the second input device (16) and is connected to the processing unit (18). Operating system according to one of the preceding claims, characterized in that the processing unit (18) is set up to generate a graphical user interface (41) which comprises a menu with menu items that can be accessed via the first and / or second input device (14, 16) at least are preselectable. Method for operating a motor vehicle, comprising the steps of: - Detecting at least one finger of an operator on at least one input device (14, 16) which is assigned to a rear side (28) of a steering wheel (10) and in the axial direction with respect to a rotation axis of the steering wheel ( 10) parallel axis is immovable, and - preselecting and / or activating a vehicle function (38, 44) by means of the at least one detected finger. Procedure according to Claim 14 , characterized in that the vehicle function (38, 44) is assigned to the at least one detected finger on the basis of the relative position or the absolute position of the at least one detected finger on the input device (14, 16). Procedure according to Claim 14 or 15th , characterized in that the preselected vehicle function (38, 44) is automatically confirmed after a period of time and / or on the basis of an exerted pressure, in particular further fingers previously on the input device (14, 16) being removed to confirm the selection. Method according to one of the preceding Claims 14 until 16 , characterized in that at least one symbol is shown on a display device (20) which is assigned to the preselected and / or activated vehicle function (38, 44). Method according to one of the preceding Claims 14 until 17th , wherein in the step of preselecting and / or activating a vehicle function (38, 44) by means of the at least one detected finger, the following steps are carried out: - Preselecting a main function (38) by means of the at least one detected finger by the input device (14), first input device (14), - providing a sub-function (44) assigned to the preselected main function (38) on a second input device (16) which is assigned to the rear side (28) of the steering wheel (10) and which is assigned to the first input device (14) ) is spatially separated, the first input device (14) being assigned to a first area of the rear side (28) of the steering wheel (10) and the second input device (16) being assigned to a second area of the rear side (28) of the steering wheel (10), wherein the areas with respect to a vertical center plane of the steering wheel (10) are separated, and - operating the second input device (16) to the driving control function (38, 44) depending on the sub-function (44) assigned to the preselected main function (38). Procedure according to Claim 18 , characterized in that the preselected main function (38) is confirmed via the sub-function (44) assigned to it.

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