Control device in a road vehicle

Abstract

Operating device in a road vehicle comprising: - a first display surface (3) for displaying information in the field of vision of at least one driver of the road vehicle, - a second display surface (5) which is arranged separately from the first display surface (3) within the reach of a vehicle occupant (9) in a seating position of the road vehicle and which comprises a touch-sensitive surface, - a mechanical control element (6) and - at least one control device (1) for generating a display on the first and the second display surfaces (3, 5) and for detecting actuations of the touch-sensitive surface of the second display surface (5) and the mechanical control element (6), characterized in that - the mechanical control element (6) is arranged at least partially in front of the second display surface (5) in the viewing direction (B) and has a transparent area (14),which is arranged in front of the second display surface (5) such that a display shown on the second display surface (5) is visible through the transparent area (14) of the control element (6), and the control device (1) controls the first display surface (3) such that actuations of the touch-sensitive surface of the second display surface (5) and / or the mechanical control element (6) are visualized in at least a partial area (B) of the first display surface (3), wherein the mechanical control element (6) comprises a rotary control or rotary push-button, wherein the rotary control or rotary push-button comprises a non-transparent outer ring (12) and the area inside the outer ring (12) is transparent, so that a display shown on the second display surface (5) is visible through the transparent area inside the outer ring (12), wherein a projection (15) is arranged inside the outer ring (12),which extends radially inwards and touches the touch-sensitive surface of the second display surface (5) or is at least arranged so close to this surface that a movement of the projection (15) can be detected by means of the touch-sensitive surface.

Description

The present invention relates to an operating device in a road vehicle having a first display area for displaying information in the field of view of at least one driver of the road vehicle and a second display area which is arranged separately from the first display area within reach of a vehicle occupant who is located on a seating position of the road vehicle. The second display surface includes a touch-sensitive surface. Furthermore, the operating device comprises a mechanical operating element and at least one control device for generating a display on the first and the second display surface and for detecting actuations of the touch-sensitive surface of the second display surface and of the mechanical operating element.Originally, the various devices provided in a motor vehicle were operated via separate operating elements. For example, there have been rotary switches for adjusting the ventilation and temperature, switches for adjusting the various ventilation nozzles, switches for operating the lighting devices for the interior of the vehicle, corresponding switches for the lighting and headlight devices on the outside of the vehicle, and operating elements for a radio or a CD player. In modern motor vehicles, so many devices for setting various vehicle functions, information systems, including driver assistance systems and entertainment systems, are provided that it is no longer expedient to provide separate control elements for all vehicle devices. For this reason, the operation of the manifold vehicle devices takes place via a uniform operating concept with few operating elements which are operated in conjunction with a display device.However, the operation of the various devices of the vehicle and the recording of the displayed information provided by these devices are intended to take as little attention as possible to the driver of the road vehicle. It is therefore desirable to present the information in the road vehicle so that it can be quickly and intuitively captured by the driver so that capturing the presented information does not result in distraction of the driver during driving. Furthermore, the operation should be able to be carried out intuitively, simply and quickly in such a way that the driver can also operate the devices of the vehicle whose information is displayed by the display device while driving. The type of operation and the information representation associated with the operation in a road vehicle thus contribute to the safety when guiding this vehicle.DE 10 2007 029 602 A1 discloses a method and a device for operating in a facility located in a vehicle. In the method described in this publication, the control panels and the display of a device in the vehicle are projected onto a projection surface in front of a passenger of the vehicle and the user inputs are detected. Accordingly, the apparatus comprises a projection device and at least one projection surface which is equipped with optical or pressure-sensitive sensors for detecting user inputs which are transmitted to a device in the vehicle.DE 10 2008 023 405 A1 discloses a motor vehicle and a display for displaying variable information and a control panel which is arranged spatially separated from the display and has at least two control elements for controlling at least one function of the motor vehicle in each case. In this case, the motor vehicle comprises a display controller for displaying an image of the control panel aligned as a function of the alignment of a hand of an operator with respect to the control panel in a display region imaged by means of the display.DE 10 2006 043 208 A1 discloses a touchscreen which has a sensitive operator control surface for setting specific functions. In order to simplify operation, at least one mechanical actuating element is arranged above the sensitive operating surface, which has a trigger which acts on the sensitive operating surface for function setting when the actuating element is moved.DE 10 2007 052 343 A1 discloses a method for displaying data in a vehicle, in which information relating to facilities of the vehicle is displayed in a first display area of a display device, and processes which run in facilities of the vehicle are visualized in a second display area of the or a further display device. In this case, the first display area is disposed in the primary vision area of the driver of the vehicle. The second display area, on the other hand, is arranged outside the primary vision area of the driver. It is arranged within reach of the driver. The display device which provides this display region is in particular configured as a touchscreen, i.e. a touch-sensitive surface is provided. Finally, a separate mechanical operating element is provided within reach of the driver, such as a rotary push switch.US 2008 / 0 129 707 A1 discloses a device with transparent operating elements.DE 10 2006 042 701 A1 describes an input system for a vehicle device, which comprises a display unit for displaying menu items, an operation unit for inputting commands, a detector unit for detecting the operation of the operation unit, a pointer control unit for displaying menu items, an input determination unit for determining the selection input of a menu item and an input processing unit for processing the selection input.DE 10 2008 041 625 A1 describes an optically transparent printing surface of an operating element.EP 1 396 813 A1 describes a contact part of an operating element which is provided on the underside of a fastening unit. The contact part has a pin and a spring.US 2008 / 0 266 265 A1 describes a control panel for a touch-sensitive surface in the center of the console of a vehicle.US 2008 / 0 053 713 A1 describes a touch-sensitive input device.US 2010 / 0 056 219 A1 describes a mobile unit having a touch-sensitive display unit and a controller for this purpose.Finally, US 2010 / 0 060 548 A1 describes a further mobile unit having a transparent flexible display and a control method for this.It is the object of the present invention to provide an operating device of the type mentioned at the beginning which enables simple, fast and intuitive operation and information recording in the road vehicle. The attention of the user required for the operation should be as low as possible in the operating device.According to the invention, this object is achieved by an operating device having the features of claim 1. Advantageous embodiments and refinements emerge from the dependent claims.The operating device according to the invention is characterized in that the mechanical operating element is arranged at least in regions in front of the second display surface in the viewing direction onto the second display surface and has a transparent region which is arranged in front of the second display surface, such that a display reproduced on the second display surface can be seen through the transparent region of the operating element. Furthermore, the control device controls the first display surface such that actuations of the touch-sensitive surface of the second display surface and / or of the mechanical operating element are visualized in at least one partial region of the first display surface.A "transparent area" is understood in the sense of the invention to mean that a display on the display surface lying behind it can be seen by the viewer and can be seen to him an optionally assigned function. The region can thus also be translucent, i.e. partially transparent. In addition, the region can be formed by an opening through which a viewer can look directly at the display surface.In the operating device according to the invention, the current function of the operating element can be changed. This change can be displayed to the user by changing the information display on the second display area in the area which lies behind the transparent area of the mechanical operating element in the viewing direction.In the operating device according to the invention, the first display surface is arranged in the field of view of at least one driver of the road vehicle. It is arranged in particular in the primary field of vision of the driver of the road vehicle. This "primary viewing range" is usually defined such that the viewing direction of the driver deviates downward or upward from the horizontal line which intersects the eyes of the driver by an angle range in a vertical plane arranged in the vehicle longitudinal direction by a specific angle α. The primary field of vision of the driver is defined here such that the angle α is less than 30°, in particular less than 20°. In order to view the first display surface, the driver must thus turn his gaze downward by less than 30° or 20° from the horizontal. This is based on an average size of the driver.The second display surface of the operating device according to the invention, on the other hand, is arranged within reach of a vehicle occupant who is located in a seat position of the road vehicle. This range comprises the range that the vehicle occupant, in particular the driver, having an average size can reach easily, i.e. without or only with a slight change in his position, in a position which he normally assumes in the vehicle. In order to touch the touch-sensitive surface of the second display surface or to actuate the operating element located thereon, the vehicle occupant therefore does not have to prevent himself at all or only slightly.In the operating device according to the invention, the user is assisted by the display on the first display surface when operating the touch-sensitive surface or the mechanical operating element, for example by graphics being displayed which are influenced by the actuating operation on the touch-sensitive surface or by means of the mechanical operating element. The driver of the road vehicle therefore only has to briefly look at the first display area, which is arranged in his field of vision, during the actuation of the operating device in order to check the actuation process. At the same time, it can carry out the actuating operation on the touch-sensitive surface of the second display area or by means of the mechanical operating element, which are arranged in its range. It is therefore possible to choose an optimum positioning in the road vehicle for the first display area, which positioning lies within the field of vision of the driver, without having to take into account that this display area lies within range of the driver. Furthermore, the second display surface can be positioned in the road vehicle in such a way that it can be reached in an optimum manner by the driver with his hand. The size of the driver's gaze direction to the second display surface is of secondary importance in this case, since the actuation process is visualized in particular by means of the first display surface. Nevertheless, it is possible to assist the user during operation by a display on the second display area. This allows the safety to be increased when driving the motor vehicle, since during the actuation of the operating device only a slight departure from the viewing direction from the driving situation has to take place. At the same time, it is ensured that the operating elements which are manually operated by the driver are very easily accessible to the driver, so that he does not have to change his seat position or only has to change it slightly during the operation.Finally, the mechanical operating element, which is provided in conjunction with the first display area, offers the advantage that the user is provided with haptic feedback when this operating element is actuated.According to one configuration of the operating device according to the invention, the mechanical operating element comprises a movable actuating element which is arranged at the touch-sensitive surface of the second display surface in such a way that a movement of the actuating element is detected by means of the touch-sensitive surface. Upon a movement of the actuating element, a signal is triggered on the touch-sensitive area of the display surface. This signal can be assigned to an actuation of the operating element, since it is detected in which region of the touch-sensitive display area the signal was triggered. Depending on the configuration of the touch-sensitive display area, it is not necessary here for the touch-sensitive surface to actually be touched by the movable actuating element. Preferably, however, the actuating element contacts the touch-sensitive surface.According to one configuration of the operating device according to the invention, the touch-sensitive display surface is configured as a capacitive touchscreen. The sensitivity of the touchscreen is designed such that only when the actuating element moves does a sufficient signal change occur, which is detected as an input. Thus, the user can continue to feel the operating element without already actuating the operating element. The function of the operating element is only triggered when the actuating element has been changed in its position.According to another configuration of the operating device according to the invention, the touch-sensitive display surface is configured as a resistive touchscreen. In this case, when the operating element is actuated by the operating element, a mechanical pressure is exerted on the touch-sensitive surface. This pressure results in a change in an electrical resistance that can be detected and interpreted as an input.The mechanical operating element can be a rocker switch or a pushbutton switch. According to the invention, however, the mechanical operating element comprises a rotary actuator or a rotary push actuator. The rotary actuator has a non-transparent outer ring, wherein the region within this outer ring is transparent, so that a display reproduced on the second display surface can be seen through the transparent region within the outer ring. By changing displays on the second display surface, which are visible through the transparent region, a changing function of this mechanical operating element can be represented easily and quickly. At the same time, the operating element is easily recognizable to a viewer through the configuration of the outer ring from a non-transparent material. Further information can be displayed around the rotary actuator on the second display area by ambient light. For example, colored representations may convey a temperature profile that is associated with the rotary actuator. Furthermore, scales assigned to the rotary actuator can be displayed on the second display surface.According to the invention, a projection is arranged inside the outer ring, which projection extends radially inward and touches the touch-sensitive surface of the second display surface or is arranged at least so close to this surface that a movement of the projection can be detected by means of the touch-sensitive surface.The operator control device according to the invention can display a partial view of a geographical map on the first display area, for example, by means of the control device. To change the representation of the partial view of the geographical map, the geographical map is displayed on the second display area in such a way that the partial view represented on the first display area is encompassed by the map represented on the second display area, and the partial view represented by the first display area is marked in the map represented by the second display area. In this way, the user can easily orient himself for the operation of the map view on the second display area. During the operating operation, however, the user can track the changes on the first display area arranged in his field of vision. It is therefore not necessary to also provide a touch-sensitive surface for the first display area, since the operation can take place completely via the second display area. In addition, a zoom function can be provided by the mechanical operating element. If this is designed, for example, as a rotary actuator, it is possible to zoom in or out of the card by rotating the rotary actuator.According to a further embodiment of the operating device according to the invention, a display device which comprises the second display surface is detachably fastened in the road vehicle. This display device comprises an interface for wireless data transmission to a corresponding interface of the control device, so that the display on the first display surface can be remotely controlled by actuating the touch-sensitive surface of the second display surface or the mechanical operating element. Further, the detachable display device in this case may also be used as a remote controller for other vehicle devices.According to a further embodiment of the operating device according to the invention, at least one lateral edge next to the second display surface is configured to be touch-sensitive. This lateral edge next to the second display area can comprise in particular a pushbutton switch, the surface of which is touch-sensitive. In this way, further operating elements are provided, which provide the user with haptic feedback.Finally, the second display surface can be bendable. In this case, bending of the display surface can be detected as input. For example, the display surface can be provided by a flexible display with organic light-emitting diodes. By means of sensors, a slight bending of the edges of such a display can be detected and interpreted as confirmation of an operating process or a zoom on a map.The invention finally relates to a road vehicle having an operating device as has been explained above. The operating device is provided in particular in a motor vehicle.The invention will now be explained on the basis of an exemplary embodiment with reference to the drawings. FIG. 1 schematically shows an exemplary embodiment of the operating device according to the invention, FIG. 2 illustrates the arrangement of the display areas in the vehicle according to the exemplary embodiment of the operating device according to the invention, FIG. 3 shows an example of a mechanical operating element of the exemplary embodiment of the operating device according to the invention, FIG. 4 shows a view of the operating element shown in FIG. 3, FIG. 5 shows an example of displays on the two display areas of the exemplary embodiment of the operating device according to the invention, FIG. 6 shows a further example of displays on the display areas of the exemplary embodiment of the operating device according to the invention, and FIG. 7 shows still another example of displays on the display surface of the embodiment of the operating device according to the invention.First, the basic structure of the operating device according to the invention is explained with reference to FIGS. 1 and 2 :The operating device comprises a central control device 1. this is coupled to a first display device 2 which has a display surface 3. The control device 1 generates graphic data that can be displayed on the display surface 1. The display surface 1 can be provided by a display, in particular a liquid crystal display or a plasma display, of any desired design. Furthermore, the display surface 1 can be provided by a display with organic light-emitting diodes. The display surface 1 can be either planar or arched.As shown in FIG. 2, the display surface 3 may extend substantially over the entire width of the vehicle. In terms of content, the display area 3 can be divided into three different main regions, for example. In the area A in front of the driver 9, the vehicle information which is not interesting for the passenger 11 such as the current speed, the engine speed, the temperature of the cooling water and the amount of the tank content is displayed. In the center area B, information visualizing operations of operation members is displayed as will be explained later. In the area C of the passenger 11, infotainment contents such as video displays and the display of websites are reproduced in particular. Finally, display bars with, for example, menu symbols can also be displayed in the page regions E and F.The first display surface 3 is arranged as far up as possible, e.g. directly below the beginning of the windshield 8 of the vehicle. The display surface 3 is thus located in the primary field of view of the driver 9. this "primary field of view" is usually defined such that the viewing direction B of the driver 9 deviates from an angle range in a vertical plane arranged in the vehicle longitudinal direction by a specific angle α downward or upward from the horizontal intersecting the eyes of the driver 9. The primary viewing range of the driver 9 is defined here such that the angle α is less than 30°, in particular less than 20°. In order to view the display surface 3, the driver 9 must thus turn his gaze downward by less than 30° or 20° from the horizontal. This is based on an average size of the driver 9.Furthermore, the control device 1 is connected to a second display device 4 which provides a second display surface 5. The control device 1 also generates graphics data for information display for the second display area 5. The second display device 4 comprises a touch-sensitive surface on the display surface 5, so that a so-called touchscreen is provided, in particular a capacitive or a resistive touchscreen. Only selected information which serves for operation is shown on the second display area 5.The second display surface 5 with the touch-sensitive surface is arranged within reach of the driver 9. The range comprises the range that the driver 9, having an average size, can grasp easily, i.e. without or only with a slight change in his position, in a position that he normally takes when driving. In order to touch the touch-sensitive second display surface 5, the driver 9 thus in particular does not have to prevent himself or only slightly.The second display surface 5 can also be provided by a display, in particular a liquid crystal display or a plasma display, of any desired design. However, it is provided in particular by a display with organic light-emitting diodes. In this case, it is possible for the second display surface 5 to be designed to be bendable or flexible. For example, the second display surface 5 can be easily flexible at the edges. A slight bending of the edges is detected by sensors and transmitted to the control device 1, which interprets such an actuation of the second display device 4 as an input.A touch-sensitive region is provided on the lateral edges 16 and 17 of the second display area 5, which detects a lateral touch of the second display device 4. In addition, a pushbutton switch is integrated into each of these lateral edges 16 and 17, for example, in order to confirm an input.The second display device 4 with the display surface 5 can furthermore be accommodated in a removable manner from the central console of the vehicle. In this case, it has an interface for wireless data exchange with the control device 1. the second display device 4 can be used in this case as a remote control for all devices which can be controlled via the control device 1, including the control of the display on the first display area 3.The control device 1 is further coupled to a data bus 7 of the vehicle. The devices of the vehicle to be operated by means of the display devices 2 and 4 are also coupled to this data bus 7. Furthermore, it is also possible for some vehicle devices to be directly coupled to the control device 1. Data are optionally transmitted from the vehicle devices to the control device 1 via the data bus 7. There, the data are processed. Graphics data are also generated which are graphically displayed by the display areas 3 and 5 of the display devices 2 and 4. In this case, information is displayed on the display area 5 which is directly connected to the operation via the touch-sensitive surface of this display area 5 or via further operator control elements. On the display area 3 information is displayed, among other things, which visualize the actuations.Finally, the control device 1 is connected to a memory 10 from which data can be read out. The memory 10 may store various data necessary for processing the data received from the control device 1.Furthermore, a mechanical operating element 6 is arranged on the second display surface 5, which is explained in detail below with reference to FIGS. 3 and 4 :In the exemplary embodiment described here, the mechanical operating element 6 is designed as a rotary actuator or as a rotary push actuator. This has a movable actuating element which comprises an outer ring 12 which is rotatably mounted in a receptacle 13. The receptacle 13 is arranged behind the second display surface 5 in the viewing direction B. The outer ring 12 passes through the second display surface 5 and is closed on the inside by a transparent element 14 arranged in front of the second display surface. The receptacle 13 could, however, also be arranged directly on the second display surface 5, so that no apertures would be required in this display surface 5.Behind the transparent element 14 in the viewing direction is a region D of the second display surface 5. For example, the function of the mechanical operating element 6 can be characterized by an alphanumeric representation or a symbol. The mechanical operating element 6 can be designed as a so-called soft key, i.e. the function of the operating element 6 can change depending on the context. Such a change can be represented simply by a change in the display in the region D of the second display area 5. In this case, the observer can recognize the display reproduced in the region D of the second display area 5 through the transparent element 14.For example, in the range D, a target temperature for the interior of the vehicle set by the rotary actuator may be displayed as shown in FIG. 4. Furthermore, outside the outer ring 12, it is possible to display on the display surface 5 in which direction the rotary actuator must be rotated in order to increase or decrease the setpoint temperature. For example, as shown in FIG. 4, a colored representation may be selected.The outer ring 12 of the operating element 6, on the other hand, is not transparent, so that the operating element 6 can be easily seen lifted in front of the second display surface 5.An actuation of the operating element 6, i.e. a rotation of the rotary actuator, can be detected by means of the touch-sensitive surface of the second display surface 5, so that the mechanical operating element 6 does not have to be electrically coupled separately to the control device 1. For this purpose, a projection 15 can be arranged inside the outer ring 12 which extends radially inward and touches the touch-sensitive surface of the second display surface 5 or is arranged at least so close to this surface that a movement of the projection 15 can be detected by means of the touch-sensitive surface. A rotation of the operating element 6 can thus be detected via the movement of the protrusion 15 over the touch-sensitive surface 15 of the second display surface 5 and transmitted to the control device 1.The displays on the display areas 3 and 5 generated by the control device 1 are explained below with reference to FIGS. 5, 6 to 7 :The control of the display areas 3 and 5 by the control device 1 is distinguished in particular in that the operation is carried out by means of the touch-sensitive display area 5 and the mechanical operating element 6 arranged on this display area 5, whereas actuations of this touch-sensitive display area 5 and of the operating element 6 are visualized in the central region B of the first display area 3.As shown in FIG. 5, a smooth transition occurs on the first display area 3 between the above-explained three display areas A, B and C. The boundary of these three areas A, B and C is broken up during the graphical conversion in such a way that the display contents can merge into one another and, depending on the contents, one or the other area can be made larger or smaller. Furthermore, symbols for menus are displayed in the two page regions E and F of the first display area 3, which symbols can be selected and actuated via the touch-sensitive edges 16 and 17 of the first display area 4. For example, to activate an icon displayed in the display areas E or F, the user slides along the edge 16 or 17 of the first display device 4 with two fingers and presses the pushbutton on this edge to select a specific icon.In the central region B of the first display area 2, as shown in FIG. 5, a navigation map can be displayed three-dimensionally in perspective, for example. If the user wishes to enter a new destination for the navigation system of the vehicle, a keyboard is displayed on the second display area 5, so that, for example, the road and the location of the desired destination can be quickly entered on the touch-sensitive surface of the display area 5.During the subsequent navigation to the destination, the three-dimensional map is displayed in the area B of the first display surface 3. In this case, the geographical map can be displayed on the second display area 5 on a reduced scale, the section displayed on the first display area 3 being identified by a marking 18, as is shown in FIG. 6. If the user wishes to change the scale, he can, for example, rotate the operating element 6, which is designed as a rotary actuator, in one direction. The scale of the display of the map then changes in the area B of the first display area 3. Such a change in scale can also be effected by a movement of two fingers on the touch-sensitive surface of the second display surface 5. Confirmation of a particular scale may be accomplished by clicking a mechanical switch or touch-sensitive area.In Fig. 7, a display is shown in which the user selects different radio stations. In the central area B of the first display area 3, graphics and symbols 19 are displayed for individual receivable radio stations. In this case, a maximum of five symbols 19 are reproduced for different radio transmitters. In order to generate a scroll in the list of radio transmitters, the user can actuate the operating element 6, which is designed as a rotary push actuator. The selection of a marked radio transmitter can be effected by clicking the rotary push actuator or the touch-sensitive display surface 5. Furthermore, rectangles 20 are displayed on the second display area 5, which correspond to the symbols 19 displayed on the first display area 3. The radio transmitter currently marked is also shown highlighted in the rectangles 20 displayed on the second display surface 5. In this case, the user can select a specific radio transmitter by directly touching a specific rectangle 20.In the same manner explained above, a plurality of further operations of vehicle functions can take place, wherein the operation takes place in each case via the touch-sensitive second display surface 5 or the mechanical operating element 6 and is visualized by means of the first display surface 3.List of reference characters1 Control device 2 First display device 3 First display surface 4 Second display device 5 Second display surface 6 Mechanical control element 7 Data bus 8 Windshield 9 Driver 10 Memory 11 Passenger 12 Outer ring 13 Receptacle 14 Transparent element 15 Projection 16 Edge 17 Edge 18 Marking 19 Symbols 20 Displayed rectangles

Claims

Operating device in a road vehicle having - a first display area (3) for displaying information in the field of view of at least one driver of the road vehicle, - a second display area (5) which is arranged separately from the first display area (3) in the range of a vehicle occupant (9) on a seating position of the road vehicle and which comprises a touch-sensitive surface, - a mechanical operating element (6) and - at least one control device (1) for generating a display on the first and the second display area (3, 5) and for detecting actuations of the touch-sensitive surface of the second display area (5) and of the mechanical operating element (6), characterized in that - the mechanical operating element (6) is arranged at least in regions in front of the second display area (5) in the viewing direction (B) onto the second display area (5) and has a transparent region (14) which is arranged in front of the second display area (5), such that a display reproduced on the second display surface (5) can be seen through the transparent region (14) of the operating element (6), and - the control device (1) controls the first display surface (3) such that actuations of the touch-sensitive surface of the second display surface (5) and / or of the mechanical operating element (6) are visualized in at least one partial region (B) of the first display surface (3), wherein the mechanical operating element (6) comprises a rotary actuator or rotary push actuator, wherein the rotary actuator or rotary push actuator comprises a non-transparent outer ring (12) and the region within the outer ring (12) is transparent such that a display reproduced on the second display surface (5) can be seen through the transparent region within the outer ring (12), wherein a projection (15) is arranged within the outer ring (12), which extends radially inward and touches the touch-sensitive surface of the second display surface (5) or is arranged at least so close to this surface that a movement of the protrusion (15) can be detected by means of the touch-sensitive surface.Operating device according to Claim 1, characterized in that a partial view of a geographical map can be displayed on the first display area (3) by means of the control device (1), and in that, in order to change the display of the partial view of the geographical map on the second display area (5), the geographical map is displayed in such a way that the partial view displayed on the first display area (3) is surrounded by the map displayed on the second display area (5) and the partial view displayed on the first display area (3) is marked on the second display area (5).Operating device according to one of the preceding claims, characterized in that a display device (4) which comprises the second display surface (5) is detachably fastened in the road vehicle and in that the display device (4) comprises an interface for wireless data transmission to the control device (1), such that by actuating the touch-sensitive surface of the second display surface (5) and / or of the mechanical operating element (6) devices of the vehicle and / or the display on the first display surface (3) can / is remotely controlled.Operating device according to one of the preceding claims, characterized in that at least one lateral edge (16, 17) adjacent to the second display surface (5) is configured to be touch-sensitive.Operating device according to one of the preceding claims, characterized in that at least one lateral edge (16, 17) comprises, in addition to the second display surface (5), a pushbutton switch, the surface of which is configured to be touch-sensitive.Operating device according to one of the preceding claims, characterized in that the second display surface (5) can be bent and in that bending of the display surface (5) can be detected as an input.Road vehicle having an operating device according to one of Claims 1 to 6.

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