WO2015018736A1

WO2015018736A1 - Control device for use in a motor vehicle

Info

Publication number: WO2015018736A1
Application number: PCT/EP2014/066499
Authority: WO
Inventors: Jörg Witthaus
Original assignee: Continental Automotive Gmbh
Priority date: 2013-08-05
Filing date: 2014-07-31
Publication date: 2015-02-12
Also published as: DE102013215370A1; DE102013215370B4

Abstract

The invention relates to a control device for use in a motor vehicle (1) having a head-up display, via which information is displayed to an operator (2) on a screen (6) arranged in the forward travel direction (3) when viewed by said operator, and having an operating device which has an input device (10) and a feedback device (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30', 31, 31'), wherein, on the head-up display, real objects (12, 16, 21) existing outside of the motor vehicle are depicted or identified, which are allocated to a first class of display objects, and information on the driving situation and/or control intentions and/or parameters of the motor vehicle or of an assembly of the motor vehicle is depicted which is allocated at least to one additional class of display objects, wherein at least two of the classes of display objects are addressed by different classes of operating commands or consequences of operating commands. Operation, particularly by means of gestures, can be well structured by said structuring of display objects of a head-up display.

Description

description

The invention is in the field of electrical engineering, especially the signal processing and the detection of operating commands in an electronic system, which has a so-called head-up display, ie, for example, in a force ^¬ vehicle, a graphic display in an image plane which lies in the direction of travel, usually forward, of a motor vehicle and can be viewed by the operator, for example the driver, without the latter turning away from the direction of travel. The invention at Be ^¬ rich is beneficial to the so-called augmented reality head-up displays (HUD AR) applicable, except where symbolizes ^¬ rule ads shown actually existing in the real world objects in the head-up display or referred become.

In fact, head-up displays in the automotive sector are already known. For example, the disclosed European patent applica ^¬ Application EP 2018992 Al a head-up display that is be ^¬ dienbar pointing or with a gesture of a driver of a motor vehicle. The respectively addressed symbol on the display is optically marked for easier operation as feedback for the driver / operator.

The German patent application DE 10 2011 121 746 AI a head-up display for a Navi ^¬ gationsgrafik is known for a motor vehicle, by means of which commands over a gesture can be entered using egg nes cursor as feedback graph.

Against the background of the prior art, the inven ^¬ tion is the object to provide a control device for use in a motor vehicle with a head-up display and with an operating device, the head-up display on the one hand real, outside the driving - represents or represents existing objects on the ^¬ hand, on the other hand, information about the driving situation and / or control intentions and / or parameters of the motor vehicle or of aggregates of the motor vehicle. In this case, the various display objects should be addressable by various operating commands in a simple form by the operator.

The object is solved by the invention with the features of patent claim 1.

It is provided according to the invention that on the head-up display on the one hand real, outside of the motor vehicle exis ^¬ ing objects are shown or designated, which are associated with a first class of display objects, and on the other ^¬ hand information about the driving situation and / or control intentions and / or parameters of the motor vehicle or of aggregates of the vehicle are shown, which are assigned to Wenig ^¬ least another class of display objects. In addition, at least two of the classes of Anzeigeob ^¬ projects by various classes of operator commands or sequences of operating commands are addressed.

In particular, in head-up displays in which not only information is displayed that describe the driving situation, such as the speed of your own vehicle, temperature, planned own Fahrtrajektorie, but also in ^¬ formations to and images of real existing objects in the The surroundings of the vehicle can overlap corresponding information on the image surface of the head-up display, or the representations can at least be close to each other. In any case, even when using a cursor / a feedback device on the head-up display, it may be difficult to decide which of the display objects located in the immediate area of the cursor is currently accessible, and to enter a corresponding command via an operating device , For example, one in the head-up display displayed speedometer, which can be switched from "Kilometers per hour" to "Miles per hour", immediately before a traffic light in the direction of travel or in front of a road sign in the direction of travel. A head-up display on the one hand take over the cursor and a ^¬ reproducing confirmation the change of speed ad to ^¬, on the other hand, however, also allow for the selection of the displayed traffic to either enlarge the image of the traffic light or electronically evaluated. In order not to burden the operator on the one hand with a large amount of information and on the other hand to provide only a limited number of operating commands for reasons of clarity, the Anzeigeob ekte be divided into several classes ^¬ , of which at least one shown on the displayed or limited display objects that relate to existing real outside the motor vehicle Ob ^¬ objects. Thus, it is possible for the operator to easily distinguish between operation commands or sequences of operation commands applicable to a first class of display objects and such operation commands or sequences of operation commands applicable to a second or further classes of display objects. Thus, in the example described, it is not necessary for the operator to know by heart the commands relating to the changing of the speedometer and / or the zooming in of a traffic light view, but basically it is between the existing ones shown in the head-up display On the one hand and symbolic or parameter or a driving situation representing information on the other hand distinguished. In principle, commands for addressing a display object of the first class as well as for addressing a display object of the second or further class can be executed per se. For example, it is conceivable that the operator initiates a control command ^¬ by pointing with a finger to a corresponding display object. In this case, at least if two display objects of different classes are close to each other, then it must be decided whether the operating command relates to a display object of the first or another class. This can for example take place in that in addition a differentiating command is given, for example, acoustically or by pressing or touching a button or by a gesture, to sort or the operator commands corresponding to ^¬ switch.

Basically, the operation of a head-up display without a cursor, ie a feedback icon, which is visible on the screen ^¬ screen, possible. However, in many cases it proves to be helpful to provide such a feedback symbol that can be moved with the controller, so that it is clearly visible to the operator to which display object a subsequently entered operating command relates.

It can be advantageously provided that the Rückmel ^¬ desymbol indicates by its appearance, which class of display objects is addressed by a subsequent operating command. For the operator then easily visible if it moves in the first class of display objects with the intended operating instructions corresponding to ^¬ the corresponding real-world outside the vehicle objects, or whether its operating commands to other classes of display objects such as Refer to the speedometer, temperature gauge, warning symbols or similar on the head-up display. It can furthermore be advantageously provided that the class of the display objects that can be addressed by a subsequently entered command can be defined by one or more specified selection commands. It is therefore possible to define a few selection commands or, in the extreme case, only a single selection command, which allows the operator to switch between the classes of the display objects and corresponding operating commands applicable to them. Such a Selection command, for example, have a different form than the operating commands; For example, a selection command may be pronounced as an acoustic spoken command if the operation commands are basically transmitted by gestures performed with hands / fingers / forearms.

It can be defined as a selection command also a hand-generated noise, such as finger snaps. However, it can also be provided that selection commands can be entered by pressing or touching an input element or by a gesture.

A particularly advantageous embodiment of the invention provides that the location of the feedback icon on the screen is specifically controllable and changeable by gestures of the operator, in particular movements of a forearm and / or a hand and / or parts of a hand. Thus, the operator prior to issuing / acknowledging an operating command, the corresponding display object to which the operating command should relate more reliably address, as if he, for example, with a gesture to a Anzeigeob ekt point and at the same time would issue this activating control command.

The invention can also advantageously be configured in that a feedback symbol by its geometric shape and / or color and / or flashing frequency and / or brightness indicates which class of display objects is addressed by a subsequent operating command.

Besides the shape, the color, the flashing frequency and the brightness, the cursor may also be marked by executed movements, such as periodic enlargement and reduction, rotation, trembling or the like. For example, the cursor can be displayed as a grasping hand, if display objects are ^¬ sierbar adres which have undergone working merely on the screen surface find, such as a speedometer that can be moved, or a warning that can be moved on the screen. When addressing a Anzeigeob ekts the first class, the cursor can be displayed as a pointing hand. Basically, but also a color combination or a

Combination of black and white conceivable, where ^{beispielswei ¬} se a bright inner circle and a black outer circle defines a first class of Anzeigeob ekten, while a dunk ^¬ ler inner circle with a bright outer circle another, z. B. may denote complementary class of display objects.

The invention can also advantageously be configured in that a feedback symbol indicates by its geometric shape and / or color and / or flashing frequency and / or brightness, which operating command / operating commands are available for a selected display object / stand. For example, a distinction can be made between the possibility of moving a part of the display on the screen and the possibility of zooming in on a part of the screen, as well as the possibilities of switching the display (for example, in the kilometer per hour to miles per hour or with a thermometer from degrees Celsius to degrees Fahrenheit). It is also conceivable to use special commands to eliminate display objects on the screen.

In principle, corresponding highlighting / marking / shaping of the cursor can also serve to indicate that a particular display object located in the immediate vicinity of the cursor or behind the cursor has just been marked for the application of subsequent operating commands.

Advantageously, the invention can also be configured by the fact that for at least one display object the selection of executable operating commands depends on whether the motor vehicle is moving. Basically, for example, can be provided that the displays that do not ects to the first class of Anzeigeob hear ^¬ ge, so for example, tachometers and other Anzeigein- instruments for travel parameters and other parameters of the motor ^¬ vehicle or its units, exclusively in the standing or parked state of Vehicle are changeable. This prevents the operator, who is usually the driver, from being distracted by redesigning the display while driving. The Anzeigeob can ects, which turned out to provable on real existing objects outside the vehicle rela ^¬ hen, even while driving addressable and with control commands. This ensures that when ^¬ play as objects to which the vehicle is moving towards, exclusively selected to be analyzed or zoomed. This is useful for situations in which the vehicle is in motion. Conversely, can also be provided that the display properties of the first class, which correspond to actually existing Ge ^¬ genständen, can not be addressed zeugs in the standing state of the vehicle and in the standing state also can not be assigned to commands accordingly. Such speech or occupation could in fact be detrimental when the vehicle starts again after the standstill and geobjekte the display of the head-up displays in terms of Anzei- the first class is adjusted so that the example ^¬, parts of the display are enlarged although there is no need for it. It can also be provided to prevent derarti ^¬ ger problems that at the beginning of a

Ride, ie a movement of a vehicle, the head-up display, in particular with respect to the first class of display ^¬ objects is brought into a neutral state. A sol ^¬ che neutralization can also be useful for displaying objects other classes. If, after selecting a class of display objects, a particular display object is marked and a command or a ^sequence of commands is input with respect to this display object, so the just entered or executed operating command or a group of operating commands can be reported back by a suitable appearance of the cursor.

In the following the invention will be shown with reference to an Ausführungsbei ^¬ game in figures and described below. Dabe schematically shows the front part of a motor vehicle with a driver, a windshield and a head-up display, the view through the windshield of a power ^¬ vehicle with a head-up display, the view in the direction of travel through the windshield with a head up display in a first driving situation, Fig. 4, the view through a windshield with a

Head-up display in a second driving situation,

Fig. 5 different examples of representations of a

Confirmation symbol as well

Fig. 6 shows another example of a representation in a head-up display according to the invention.

FIG. 1 shows a side view of a motor vehicle 1 in which an operator in the form of the driver's seat is shown in FIG

Driver 2 is located, the view is straight ahead in the direction of travel 3. The operator looking through the wind ^¬ protective plate 4, which is made of glass or other transparent material.

In addition to the objects that the driver 2 through the windshield 4 in its environment, in particular in Direction of travel 3, can be seen as real existing objects, is visible to the driver via a Pro ektionseinheit 5 on the inside of the windshield 4 an image proji ^¬ graces, the virtual image plane is in the image area 6. In this way, the projected image for the driver 2 appears in the image area 6. The projected images or partial images may be, for example, generated images of instruments such as speedometers, thermometers, mileage indicators, or generated warnings. The image of real existing objects perceived in the real world through the virtual image plane is superimposed on the driver with the projected images or partial images of the head-up display. As a result, the driver can recognize corresponding information on the head-up display without averting the view from the direction of travel 3.

The projection unit 5 receives the image to be projected ^¬ information from a trigger unit 26 of the head-up dis- plays, which in turn receives information from a forward direction of travel in 3 outdoor camera 7 and sensors 8,. 9 For example, the outside camera 7 perceives the image perceived forward in the direction of travel 3 by the driver even without a head-up display, so that it can be mirrored in, for example, as an artificial image for the driver in addition to the real image. The artificially reflected, per ^¬ jizierte image has the advantage that parts of the image zoomed by activating device or can be easily manipulated by the driver in a different way. In addition, the control unit 26 receives signals from the sensors 8, 9, wherein the sensor 8, for example, can measure the distance to a ^{preceding ¬} moving vehicle as a distance sensor and the sensor 9 may be, for example, a temperature sensor. In addition, a multiplicity of other sensors are usually connected to the drive device 26, such that within the head-up display, for example, a tachometer, a tachometer,

Controls for a multimedia device, such as a radio, and a speakerphone for a telephone and the like can be displayed on ^¬ .

In the interior of the motor vehicle 1, an inner camera 10 is also arranged, which is directed to the operator 2 and, for example, receives their gestures, in particular ^¬ example, the movement of one hand or both hands. The recorded ^¬ made gestures that can be taken, for example, by several vonein ^¬ other spaced cameras inside the motor vehicle up to obtain three-dimensional information about the movement and position of the hands, fingers and forearms, can in commands for Ansteuereinrich- tion 6 or another unit of the motor vehicle to ^¬ set.

FIG. 2 shows an example of what can be made visible in a head-up ^{display in} addition to the objects that are actually visible in the forward direction of travel. 2 shows a part of the interior of a motor vehicle with a windshield 4 and a dashed Darge ^¬ presented head-up display, the dashed Li ^¬ never the image section on the image surface 6 shows. It is to ^¬ next real existing existing independently of the head-up display a road 11 with a vehicle 12 to see, which precedes the eige ^¬ nen vehicle.

The camera 7 of the vehicle takes to the streets and the preceding ^¬ vehicle, is this not in the head-up display again, as this could lead to a superposition of two images, which can be uncomfortable for the driver. However, an image processing unit can determine in the drive apparatus 26 that a preceding vehicle 12 EXISTING ^¬ is and where it can be seen in the real image of the driver. The head-up display can then dragging a selection circuit 13 to the real image of the real vehicle to steer the atten ^¬ ness of the driver thereto. It can, however be such that such a marker circle 13 is first turned on by a selection command of the driver by means of a cursor to indicate that a command can be entered in the sequence, which refers to this Anzeige e ect, which as a display e ect the first class, a real existing object marked or marked. For example, a fixed distance to the preceding vehicle 12 can be adjusted by means of a distance-regulation system by yet mali ^¬ ges operating the cursor by means of a corresponding gesture or input in other ways command.

In addition, the Tachome ^¬ ter shown on the left in the head-up display is selectable by means of a cursor, but this is a display object of a second class, with the other types of interactions, such as moving the display of the tachometer on the screen 6 or turning the Dar ^¬ position of the speedometer as well as the enlargement of depicting ^¬ lung or deletion of presentation are possible. If the tachometer 15 is marked, either a marker circle can also be drawn around the tachometer display, or the tachometer itself can be flashed or otherwise visually highlighted or changed. This results for the operator from the marking directly by different emphasis of Anzeigeob- jects a first and second class, which interactions in the sequence with the individual display objects are possible. For example, in contrast to the tachometer display, rotating or shifting the view of a vehicle 12 traveling ahead in the image area 6 would not make sense immediately.

The cursor 14 can be moved to control individual display objects by means of a gesture control, for example by moving a hand on the screen 6. For example, by the camera 10 or a group of cameras in the interior of the vehicle, the corresponding gesture of the forearm and the hand or an index finger of the Bedienper ^¬ son be followed, the cursor ideally the virtu- can follow the extension of the arm beyond the index finger. The driver can immediately see if the cursor moves to where there is a display e ect to be addressed soon. If the cursor is not moved by a gesture, the driver can repeat the gesture without delay until the cursor has arrived at the desired location. Thereafter ^¬ fehls example, can be also selected by a Auswahlbe whether an on-the location of the cursor or directly in the region of the cursor display object that is also addressed, for example either as a display object of several classes, in the particular application as a display object of the first class or display object another class should be addressed.

For example, a street sign, which is visible in the real world, can be simultaneously mirrored onto the screen 6 via the head-up display. If this road sign, which can indicate, for example, a speed limit, addressed as a real object of the first class of display objects, it is clear that the real existing sign is meant that can be addressed by means of a command. In this case, for example, the speed limit can be automatically read out and output to a speed control device, so that the vehicle automatically maintains the maximum speed.

The corresponding image of the road sign can also be addressed as a symbolic display object, ie only as a representation of a sign, which is done by off ^¬ lead a corresponding selection command. Then it is clear that in the following only the image of the shield is to be manipulated that, for example, the Ab ^¬ education is to be increased in order to facilitate the driver's recognition of the shield. FIG. 3 shows further typical functions of a head-up display. Are initially through the windshield ^¬ disc 4 in the real world and independent of the gelung as installing a road 11 with a preceding vehicle 12 and a road sign 16 visible. Regardless, the head-up display additionally provides the indication of an arrow 17 indicative of one's own direction of travel, as well as a tachometer 15 and a temperature indicator 18, which may for example indicate the temperature of the engine oil of the own vehicle. In addition, an image section 19 is shown, in which the street sign 16 is shown enlarged, ie zoomed. This may for instance be effected in that at an earlier time, the road sign in the head-up display marked and a corresponding gesture command has been given, to receive and an enlarged view of the road sign on the outer ^¬ camera 7 in the head-up display einzuspie- rules.

In the illustration of FIG. 3, therefore, the real visible motor vehicle 12 and the road sign 16 can be highlighted, for example, by additional markings, such as encirclements, by means of the head-up display, ie, they can be designated. Would the head-up display completely replace the view through the windshield in the real world, which is basically conceivable, then the operator / driver would also perceive the vehicle 12 and the road sign 16 ^¬ finally on the head-up display , and these objects could then be marked, for example, as flashing objects. In both cases, both in marking by an encirclement in the head-up display as well as in the full representation by means of head-up displays, these two properties are as display objects in the first class ^¬ displayable or designatable. The remaining display objects (the tachometer 15, the temperature display 18 and the enlarged street sign representation 19) represent display objects of a second class. In Fig. 3 also a feedback symbol (cursor) 20 in the form of the representation of a pointing hand is shown with an extended index finger. The operating device can be set up in such a way that the indication of a pointing hand 20 means that the display object of the first class, that is to say one

Marking of the motor vehicle 12 or the road sign 16, are responsive.

The further use of feedback symbols will be discussed in more detail in connection with FIG.

4 shows the view of a windshield is shown with inserted ^¬ spiegeltem head-up display, which is visible in FIG. 3, a street 11 regardless of the input reflection of the head-up displays, as well as a real existing Ge ^¬ subject matter 21 in the form of a street lying on the 11 ton and a labeled street sign 22.

It is the cursor in the form of a pointing hand 20 'ones shown, is that produced in the head-up display a marker 23 in the form ei ^¬ ner dotted line, and thus the road sign 22 highlighted. The shape of the cursor 20 'shows that it can be used to address a display object of the first class. This means that when pressed again, the cursor is automatically read by a movement confirmation for example, the endorsement of the road sign and is forwarded to a Navigati ^¬ onssystem or another control system of the vehicle for compliance. In the area of the road, a buoy 21 is also shown, which represents an obstacle to the own vehicle. This bin could be addressed directly by moving the pointing hand 20 'onto the bin as a first class display object. A corresponding confirmation command could then be used to request a control system of the vehicle to plan an evasive maneuver. However, it is also another variant described in connection with FIG. 4, which refers ects on Indicating ei ^¬ ner second class. Namely, in FIG. 4, the direction of travel of the own vehicle in the form of a display object of the second class is indicated by the arrow 17. By ei ^¬ nen corresponding selection command, which may be formed, for example, as a gesture, but also as noise, the cursor in the form of the pointing hand 20 'can be transformed into another cursor in the form of a gripping hand 24, indicating that in this state objects of the second class are directly addressable. With this cursor 24, the arrow 17 can be marked and then transformed by dragging over the image surface by means of another gesture in the curved arrow 25, which denotes an evasive maneuver of the vehicle.

In the left part of the representation of the roadway of the road 11 two representations of a pointing hand 20 '' and a gripping hand 24 'are also shown. (It should be noted here that it makes sense to have only one single cursor at a time on the screen as a feedback symbol.)

For example, the ^¬ ses may be by labeling the speedometer shown meters 15 and pressing using the pointing hand 20 '' are addressed as a display object of the first class, and by confirming a command, the speed can for example be controlled to the current speed kon ^¬ constant. It is alternatively possible to convert the cursor of the pointing hand 20 '' in a cursor of the grasping hand 24 'by a select command, and to mark and the same representation of the tachometer 15 to be driven, wherein acting in this case is not content to the displayed Ge ^¬ speed but the display 15 of the tachometer is displaceable on the image surface. In this case ^¬ game is clear that the same display 15 of a Tachome ^¬ ters as a display object of a class or, alternatively, for a Selection command can also be addressed as a display object of another, different from the first class.

Of course, the function of the invention is not bound to the selection of particular feedback symbols in the form of pointing hands, but other forms of feedback symbols can also be used, which are shown by way of example in FIG. There, five different choices are shown among each other, on the left side in each case in the event that no display object is selected, while each of the corresponding symbols on the right represent the situation in which an object is already selected. The illustrations each show the executable gestures to facilitate the operator's operation. For example, displays the icon 27, that can be the cursor ge ^¬ points to an object without having a marked or located in the immediate vicinity of the cursor. If a displayable or labelable display object is located in the area of the cursor, then it converts its display into symbol 27 '. This can be done by bringing the cursor close to a display object or by marking a corresponding display object separately by means of an operating command or selection command. The symbol 28 shows that by pressing or pointing, that is a corresponding loading ^¬ movement, a command can be entered without a corresponding display object is selected or is to be seen in the vicinity of the Cur ^¬ sors. The symbol 28 'designates a corresponding situation, namely that a selection or a selection command can be made by pressing, in the event that a display object is located ^near the cursor or is already selected, depending on the device of the system. The symbol 29 denotes the possible command of gripping, so that a gesture with an open hand is possible, where ^¬ no display object in the vicinity of the cursor to see or is marked, while the symbol 29 'denotes the situation ^¬ net, in which by the corresponding gesture immediately Be ^¬ can be entered error. The symbol 30 denotes the ability to engage with a CLOSED ^¬ Senen hand little and, for example, hold, again on the left side by the symbol 30, the Si ^¬ situation without selection of a specific display object, on the right side by the symbol 30 'which Situation after selection of a notification object or the situation that a

Display object is in the immediate vicinity of the cursor and can be addressed by such an object is called ^¬ net. The symbol 31 indicates the possibility by turning the

Hand a command to enter, for example, to rotate a corresponding display object on the screen. The symbol 31 'denotes the same command option if already ^¬ geobjekt selected one or Ad is directly selectable.

In addition to the corresponding graphic design of the illustrated icons parts of the display may also flash to make either the cursor better on the scene recognizable or to distinguish between the situation of a selected display object and the situation without selection or Auswahlmög ^¬ friendliness of a display object to can. In addition, it is also conceivable to identify the different variants of the symbols by color design or by partial transparency.

In Figure 6, a road 11 with a preceding vehicle 12 and an oncoming vehicle 32 can be seen through the windshield 4 again. By means of a cursor, the preceding vehicle 12 can be marked and identified by a marker circle 13, and by a further command can be made that the relative speed of the preceding vehicle to own Vehicle is displayed in a display section 33. The marking 13 of the preceding vehicle is thus to be regarded as a display object of the first class, ie in relation to a real existing object. The display section 33 is also addressable as a display object, however, since not directly referred to as display ^¬ object of the second class, these display a real existing object, but a driving parameter. If the display section 33 is marked, for example, the display of the relative velocity of the unit "kilometers per hour" in "mph" ^¬ converts be converted. Likewise, the oncoming vehicle 32 is by a marker circuit 13 'be marked, and it may further display section 33 a' are produced, in which the Re ^¬ lativgeschwindigkeit of the oncoming vehicle is displayed 32 to the host vehicle. This speed ^¬ display in the display section 33 'can again be marked and treated as Anzeigeob ^¬ jekt a second class, in ^¬ the display is changed. If one of the vehicles 12, 32 is marked, in addition to the method explained above, an immediate interaction with the real objects can also be selected by an operating command, for example by setting a minimum distance of the own vehicle in relation to the vehicle 12 traveling in front ^¬ is.

The invention thus allows, in principle, to distinguish between different classes of display objects in which individual elements of the display are alternatively ^¬ geobjekt a first as Ad, and a second class interpretable, depending on whether or not to interact with an actually existing object or whether a corresponding display should be changed. Allows the display of a Augmen- ted reality head-up display that shows both parameters of driving ^¬ situation, ie metadata, and real existing objects and marks, are structured in a clear manner.

Claims

Control device for use in a motor vehicle (1) with a head-up display through which information is displayed to an ^operator (2) on an image surface (6) arranged in the forward direction of travel (3), as well as with an operating ^device which has an input device (10) and a feedback device (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30' , 31, 31 '), on the one hand, real objects (12, 16, 21) existing outside the motor vehicle are ^shown or designated on the head-up display, which are assigned to a first class of display objects, and on the other hand Information about the driving situation and/or control intentions and/or parameters of the motor vehicle or a unit of the motor vehicle ^is displayed, which is assigned to at least one further class of display ^objects , with at least two of the ^classes of display objects being controlled by different classes of operating commands or sequences of operating commands can be addressed.

Control device according to claim 1, characterized in that in the head-up display there is a feedback symbol (cursor) (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29 ', 30, 30', 31, 31') is ^displayed , which shows which display object a subsequently entered operating command refers to.

Control device according to claim 2, so that the feedback symbol (14, 20, 20 ', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30', 31, 31 ') indicates by its appearance which class of display objects is addressed by a subsequent operating command.

Control device according to claim 2 or 3, characterized in that the class of display objects addressable by a subsequently entered command can be determined by means of one or more specified selection commands.

Control device according to claim 4, characterized in that selection commands can be entered ^acoustically , by pressing or touching an input element or by a gesture.

Control device according to claim 1 or one of the following claims, so that the location of the feedback symbol (14, 20, 20 ', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30 , 30 ', 31, 31') on the image surface (6) can be specifically controlled by gestures of the operator, in particular movements of a forearm and / or a hand and / or parts of a hand.

Control device according to claim 2 or one of the following claims, characterized in that a feedback symbol (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30 ', 31, 31') indicates by its geometric shape and/or color and/or flashing frequency and/or brightness which class of display objects is addressed by a subsequent operating command.

Control device according to claim 2 or one of the following claims, characterized in that a feedback symbol (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30 ', 31, 31') indicates by its geometric shape and / or color and / or flashing frequency and / or brightness which operating command / which operating commands are available for a ^selected display object.

9. Control device according to claim 1 or one of the following claims, so that for at least one display object the selection of executable operating commands depends on whether the motor vehicle is moving.

10. Control device according to claim 2 or one of

the following claims, that the feedback symbol (14, 20, 20', 20'', 24, 24', 27, 27', 28, 28', 29, 29', 30, 30', 31, 31') shows the currently selected operating command through its appearance.