DE102018201768A1 - A method of displaying information in a head-up display of a vehicle, a display system for a vehicle, and a vehicle having a display system - Google Patents

Abstract

The invention relates to a method for displaying information in a head-up display, HUD, of a vehicle. In this case, a fixation area (10) of a driver of the vehicle is determined and preferably kept free of any representation of projections of the HUD. Further, the remaining projection area (20) of the HUD is segmented into different display areas (21, 22, 23, 24), each display area (21, 22, 23, 24) being arranged to display other information (31, 32, 33, 34) is. In particular, a first display region (21) is arranged at a greater distance from the fixation region (10) than a second display region (22). First information (31) is displayed in the first display area (21) and is different from second information (32) displayed in a second display area (22).

Description

The invention relates to a method for displaying information in a head-up display (HUD) of a vehicle, in particular of information projected into the windshield of a motor vehicle. The invention further relates to a display system with a HUD and a set up for carrying out the method of the invention control unit and a motor vehicle with the display system according to the invention.

Head-Up Displays (HUD) are display systems that have been used for decades in aviation and are increasingly used in motor vehicles. The term head-up display is derived from the special feature of these display systems to project a display content into the field of view of a user. He therefore does not have to adjust his head posture or his line of sight, for example, to lower ("head-down") in order to perceive the display contents. The aim is to enable the user to direct his field of vision without interruption to an area in front of the aircraft or vehicle. Typically, HUDs are based on the projection of display content onto a user-facing transparent screen, such as the windshield of a vehicle.

In conventional display means, such as screens arranged in the dashboard of a vehicle, the user can not perceive the events occurring in front of the vehicle briefly when looking at the display means. Thus, there is always the possibility that the response time of the user is so prolonged that it can not react in time to potentially dangerous events. While the user of HUDs can focus his gaze continuously on an area in front of the vehicle, there is a danger that display content may obscure or at least diminish the visibility of events occurring in front of the vehicle. HUDs therefore always ask the question of the most appropriate presentation of content, for example with regard to the positioning of the content as well as the transparency or the duration of its presentation.

Various methods for displaying display contents on vehicle head-up displays are already known from the prior art.

The EP 2 990 266 A1 discloses a method for displaying warnings by means of a HUD. The warnings shown correspond to different categories of automatically recognized hazards. Furthermore, a form of representation of the warnings is adapted according to the relevance or actuality of a recognized hazard. The representation is always projected to a position corresponding to the detected danger.

The US 2014/0268353 A1 describes an augmented reality system for displaying three-dimensional navigation instructions. In this case, by means of a HUD, a multiplicity of graphic elements are projected onto different focal planes in the windshield of a vehicle in such a way that a spatial effect results in superposition with the surroundings. Various information is displayed by means of various graphical elements. A representation takes place for the most part within a fixation area of the driver.

According to the DE 10 2014 000 803 A1 In principle, traffic-relevant information is displayed in an edge area of a driver's field of vision. However, since the peripheral area of the field of view is static, the user can also view the displayed information in the area of his sharp vision, ie in his foveal visual field. Viewing the information displayed thus always requires a change in the viewing direction.

In the US 2013/0076787 A1 A display method is described wherein a graphical representation is always projected onto a HUD in the direction of a driver's line of sight. Thus, the need for head or eye movements of the driver, for example during cornering, should be further minimized. Additionally, less relevant information may always be displayed at a fixed point out of sight of the driver. In this method, there is the disadvantage that the driver is overwhelmed or fatigued by the constant change in position of the information displayed.

The method known from the prior art has in common that a representation of information directly in the direction of the driver is generally regarded as positive. The danger of obscuring traffic events that are relevant for the driver is therefore given too little attention. However, an arrangement far out of sight of the driver makes the application of a HUD altogether obsolete and thus also not considered.

It is an object of the present invention to provide a method for displaying information in a head-up display of a vehicle that overcomes the disadvantages of the prior art and enables optimum visibility of both the displayed information and the environment of the vehicle.

The object is achieved by a method for displaying information, a display system and a vehicle according to the respective independent patent claims. Preferred developments are the subject of the respective dependent claims.

The method according to the invention for displaying information in a head-up display, HUD, of a vehicle has at least the following method steps. In a first step, a fixation area of a driver of the vehicle is determined. Fixation area in the context of this patent application refers to an area to which or by which a driver defaults a focus of his / her attention while driving. In other words, one or more main directions of the driver during the journey are within the time average within the fixation area or the fixation area is defined by these main directions of sight. The fixation area is the area of the environment in which the driver, while driving, mainly looks or the part of a projection area of a HUD (windshield) through which the driver mainly looks while driving.

The existence of such a fixation range of vehicle drivers is proven by empirical studies, for example, the publication by Lappi et al. (2017) Systematic Observation of an Expert Driver's Gaze Strategy-An On-Road Case Study. Front. Psychol. 8: 620. doi: 10.3389 / fpsyg.2017.00620, the contents of which are hereby fully incorporated by reference. Various ways of determining the fixation area are described below with reference to preferred embodiments of the method. In the method according to the invention, the fixation area is preferably constant and, in particular, does not vary with each change of a line of sight of the driver.

In a further step of the method according to the invention, a projection area of the HUD is segmented into individual display areas as a function of the distance to the fixation area. In particular, the projection area minus the fixation area is segmented. Alternatively, preferably, the projection surface of the HUD is defined as a function of the distance to an image of the fixation region on the projection surface of the HUD. The projection surface refers to the entire surface of a transparent screen or the windscreen in which a representation of information by means of HUD is possible in principle. Due to the constant fixation region, the distances to this and thus the position of the different display regions are constant in the method according to the invention.

In particular, the projection surface of the HUD is segmented at least into a first display area and into a second display area, wherein the second display area is different from the first display area and wherein the first display area has a greater distance from the fixation area than the second display area. Preferably, the display areas are exclusive, non-overlapping areas. The fixation region is preferably part of the projection surface; alternatively, an image of the fixation region on the projection surface can be used for distance determination. The distances in this case preferably relate to a minimum distance between the regions, that is to say to the smallest distance between a point of the fixation region and a point of one of the display regions. Alternatively preferably, the distances relate to centroids of the regions.

Within the scope of the present invention, each display area is suitable for presenting information by projections of the HUD. In particular, in the method according to the invention, first information is displayed in the first display area and second information is displayed in the second display area, the second information being different from the first information. Consequently, in the method according to the invention, different information is specifically allocated to different distances from the fixation area. Furthermore, a classification of the various information presented is preferably carried out and an order of the information resulting from the classification is mapped to a metric with respect to the fixation area.

In the context of the present invention, there is not necessarily a projection of information onto the projection surface, in the sense that the information is displayed on the projection surface and can be observed, for example, from different angles. Rather, a projection of information by means of the HUD on the projection surface in a field of view of the driver. In this case, the projection surface primarily serves to reflect the projected information into the field of vision of the driver. Due to the transparency of the screen or the windshield, this reflection is like a semi-transparent mirror. Thus, the driver may perceive the information projected by the HUD superimposed as the environment behind the windshield. Preferably, there is a virtual pixel of the projected information in this environment.

It is known that the intensity of the conscious perception of information decreases with increasing distance from a foveal visual field, that is, the area of sharp vision. Outside of this foveal visual field, ie in the area of peripheral vision, perceived information content is processed more unconsciously. At the same time, the sampling frequency, ie the temporal resolution, is significantly higher in the area of peripheral vision than in the foveal field of view. Thus, despite the less conscious perception, sensations of peripherally-perceived sensation can be adequately responded, provided that the mental activity for the particular reaction does not exceed a certain amount of cognitive effort. This psychological knowledge is implemented in the present method for displaying information in such a way that a targeted selection is made, which information contents are to be displayed at which distance to a fixation area of a vehicle driver. Thus, a driver's cognitive load is minimized and its driving experience is improved.

In a preferred embodiment of the method according to the invention, the fixation area overlaps the projection area of the HUD. In other words, the fixation area is arranged within the projection area, that is to say the area available in principle for displaying display contents. According to this embodiment of the method according to the invention, the fixation area is preferably kept free from projections of the HUD. In other words, a display of display contents does not take place in the fixation area. This may mean that a virtual pixel of information projected into the driver's field of vision is not located within the fixation area. Since contents shown in the fixation area are almost inevitably consciously perceived by the driver, this embodiment advantageously makes it possible for the driver to concentrate distraction-free on the environment, in particular on the fixation area. Thus the driving safety and the personal driving experience are further improved.

Also preferably, the projection surface is arranged on at least part of a windshield of the vehicle. Particularly preferably, the projection surface extends almost completely from a lower edge of the windshield to an upper edge of the windshield. Areas of the windshield, behind which the windshield wipers or on which tinting strips are located, are preferably excluded from the projection surface. Also preferably, the projection area extends over the entire width of the windshield or at least on a front of the driver area of the windshield.

Further preferably, the fixation region, in particular an image of the fixation region on the windshield of a vehicle, is formed by a set of intersections between frequently occurring viewing directions of a driver and a windshield of the vehicle. Also preferably, the viewing direction of the driver is at least temporarily detected or determined based on at least temporarily acquired measurement data. The person skilled in the art for this purpose a variety of techniques for so-called "eye-tracking" (oculography) are known. For this purpose, camera-based techniques and, for example, cameras mounted in the rear-view mirror are particularly preferably used. Advantageously, the intersections with the plane of the windshield and thus the fixation area can be determined mathematically on the basis of the parameterized viewing directions of the driver. Particularly preferably, the fixation area is trained only once, for example when starting the vehicle or when selecting a new driver, and then remains unchangeable.

Alternatively, a main line of sight of the driver is estimated on the basis of other measured data, for example based on a seat adjustment of the driver. In addition, other data, such as an input of the driver's height, may be used to estimate the viewing direction. Particular preference is given to using further information, for example relating to the usual position of an area located outside the vehicle and mainly viewed by the driver, for example as position information relative to the vehicle, for determining a fixation area of the driver.

Further preferably, the fixation region has a width corresponding to a projection of a cutting line between a traffic lane traveled by the vehicle and a horizon line, in particular a horizon line perceived by the driver of the vehicle. The projection of this section line is preferably carried out approximately along a viewing direction of the driver and on the windshield of the vehicle. According to this embodiment, the fixation area can also be determined by means of a camera located in or on the vehicle and by mapping the environment surrounding the vehicle. Furthermore, the vertical height of the fixation region is preferably smaller than its horizontal width.

Since the fixation area is preferably a projection of a more distant road area at the level of the horizon along the driver's line of sight onto the windshield of the vehicle, the fixation area is preferably arranged in an upper third of the projection area and possibly in the upper third of a windshield of the vehicle , In a particularly simple embodiment of the method according to the invention, the fixation area is determined only during the development of the vehicle as a variable standardized for this vehicle. Such a standardized fixation area can be stored in the control unit of the vehicle.

In a particularly preferred embodiment of the method according to the invention, the distance metric of the display areas in the projection area, which relates to the fixation area, is linked to a psychological driving behavior model. The driving behavior model is preferably an adaptation of the "three-level model" to driving a vehicle. The "three-level model" is described in the paper by Jens Rasmussen: Skills, rules, and knowledge; signals, signs, and symbols, and other distinctions in human performance models. IEEE Trans. Systems, Man, Cybernetics, SMC-13 (1983), pp. 257-266, the entire contents of which are hereby incorporated by reference.

In particular, the "three-level model" distinguishes between (a) sensory-based (skill-based) behavior, (b) rule-based behavior, and (c) knowledge-based behavior. The craft-based behavior (a) is based primarily on stimulus-response automatisms, rule-based behavior (b) primarily on a repertoire of associative behaviors, and knowledge-based behavior (c) on conscious decision-making and planning.

An adaptation of this "three-level model" to the driving task was already carried out by Donges in 1982 (see for example the textbook by Hermann Winner, Stephan Hakuli and Gabriele Wolf: "Handbuch Fahrerassistenzsysteme: Grundlagen, Komponenten und Systeme für aktiv Sicherheit und Komfort"; Springer-Verlag, 2011, pages 15 to 18, to which full reference is hereby made). Accordingly, in the driving task, the navigation task, comprising the decision on route and time course, the knowledge-based behavior (c), the guidance of the vehicle, comprising deriving reference variables such as target track and target speed based on the destination and current environment, the rule-based behavior (b ), and stabilizing the vehicle, comprising smaller steering and acceleration operations for adjusting actual lane and actual speed to the desired values, associated with the craft-based behavior (c).

The application of this model based on the "three-level model" model of the driving task according to Donges in the method according to the invention leads to a particularly preferred information distribution as a function of the distance to the fixation area. In a particularly preferred embodiment of the method according to the invention, the first display area is arranged in a region of the peripheral vision of a driver of the vehicle. Further preferably, the first information for stabilizing the vehicle serving information. The stabilization information is particularly preferably content for limiting the lane if, for example, side lane edges are not visible or absent in the dark or in the wet. For this purpose, the lane edges are preferably detected by means of vehicle sensors or read from map material. Likewise preferably, the information used for the stabilization is an indication of the actual speed if, for example, it exceeds a permissible speed. For this purpose, speed limits are preferably read by means of vehicle sensors and compared with the actual speed. Particularly preferably, the first information is shown as graphical warning elements. Particularly preferably, the first information is displayed in the form of an augmentation, that is to say in superposition with the environment actually perceived by the driver.

Also preferably, the second display area is arranged between the first display area and the fixation area. Particularly preferably, both the first and the second display area are arranged below the fixation area. The second information is preferably information used to guide the path of the vehicle. The second information thus preferably relates to the next driving maneuver, that is, for example, a lane change, a turn or a turn. Particularly preferably, the second information is displayed in the form of an augmentation, that is to say in superposition with the environment actually perceived by the driver. In an exemplary implementation, the second information is a directional arrow that is projected into the HUD so as to superimpose a currently traveled lane. Preferably, this arrow is generated by comparing a GPS position of the vehicle with map material.

The application of the model of the driving task according to Donges in the method according to the invention also results in the further segmentation of the projection surface at least into a third display area. In this case, the third display area is different from the first display area and the second display area and has a smaller distance to the fixation area than the first display area. Preferably, the third display area also has a smaller distance to the fixation area than the second display area. In the third display area, third information different from the first information and the second information is displayed.

In a preferred embodiment, the third display area is arranged above the fixation area or between the second display area and the fixation area. Furthermore, the third information is preferably information used to navigate the vehicle. Thus, the display of navigation data is advantageously close to the horizon, where they can be read by the driver and deliberately processed. The third information may include, for example, an indication of the destination, a distance to the destination and a direction to the destination. The data to the destination preferably corresponds to an input in a navigation system of the vehicle or are read out of this.

In summary, linking the model of the driving task to donges with the findings on the fixation area of a driver means that in the method according to the invention different information contents are preferably displayed in an associated display area such that the cognitive effort for processing the information displayed in a specific display area is reversed proportional to the distance of this display area from the fixation area. In other words, the more conscious perception and processing require certain information, the closer this information will be displayed according to the invention at the fixation area of the driver.

In a further preferred embodiment of the method according to the invention, a fourth display area for displaying fourth information without reference to the driving task is at least temporarily displayed along a lower edge of the projection area. Also preferably, the fourth display area is displayed with the greatest possible distance to the fixation area in the projection screen. Particularly preferably, the fourth display area is displayed only temporarily. In other words, the display of the fourth display area is only for a predetermined time, for example, after an input of the driver or after a certain period of time. According to this embodiment, the fourth display area may overlay another display area, more preferably the first display area. The fourth information without reference to the driving task are therefore less weighted or classified according to the invention than all the information related to the driving task. The fourth information is different from the first, second and third information, more preferably it is infotainment information.

The method steps of the method according to the invention can be implemented by electrical or electronic components or components (hardware), by firmware (ASIC) or by implementing a suitable program (software). Also preferably, the inventive method is realized or implemented by a combination of hardware, firmware and / or software. For example, individual components for carrying out individual method steps are designed as a separate integrated circuit or arranged on a common integrated circuit. Individual components configured to perform individual process steps are also preferably disposed on a flexible printed circuit board, a printed circuit board (PCB), a tape carrier package (TCP), or other suitable substrate.

The individual method steps of the method according to the invention are furthermore preferably designed as one or more processes that run on one or more processors in one or more electronic computing devices and are generated when one or more computer programs are executed. The computing devices are preferably designed to cooperate with other components, such as a projector of the HUD and one or more sensors or cameras to realize the functionalities described herein. The instructions of the computer programs are preferably stored in a memory, such as a RAM element. However, the computer programs may also be stored in a non-volatile storage medium such as a CD-ROM, a flash memory, or the like.

It will be further appreciated by those skilled in the art that the functionalities of multiple computers (computing devices) may be combined or combined in a single device, or that functionality may be distributed from a particular computing device to a plurality of devices to perform the steps of the method of the present invention to deviate from the method according to the invention.

Another object of the invention relates to a display system for a vehicle having a head-up display, HUD, arranged for projecting information onto a windshield of the vehicle. Suitable HUDs are known to those skilled in the art. A projection surface of the HUD preferably extends over the entire windshield, more preferably over almost the entire height of the windshield and also preferably over a section of the windshield in front of the driver. The display system according to the invention also has a method for carrying out the method according to the invention set up control device. This may be a control unit exclusively assigned to the display system or a control unit of a vehicle in which the display system is arranged.

Likewise subject of the invention is a vehicle with a display system according to the invention. In the vehicle, the inventive method, as described above, thus carried out. Display contents are shown in such a manner in the display areas of a segmented projection screen (windscreen) that the distance of the display contents to a fixation area of the driver is lower, the more conscious perception the processing of the displayed display contents requires. The display contents are thus subdivided into exclusive, non-identical information, at least in first information and second information (other than the first information) stored in exclusive, non-overlapping display areas, at least in a first display area and in a second display area (different from the first display area) first display area).

Further preferred embodiments of the invention will become apparent from the remaining, mentioned in the dependent claims characteristics. The various embodiments of the invention mentioned in this application are, unless otherwise stated in the individual case, advantageously combinable with each other.

• 1 eine schematische Darstellung des Blicks eines Fahrers durch die Windschutzscheibe seines Fahrzeugs;
• 2 eine schematische Darstellung einer Projektionsfläche eines HUD gemäß einer ersten Durchführungsform;
• 3 eine schematische Darstellung einer Projektionsfläche eines HUD gemäß einer zweiten Durchführungsform; und
• 4 eine schematische Darstellung einer Projektionsfläche eines HUD gemäß einer dritten Durchführungsform.

The invention will be explained below in embodiments with reference to the accompanying drawings. Show it:

• 1 a schematic representation of the view of a driver through the windshield of his vehicle;
• 2 a schematic representation of a projection surface of a HUD according to a first embodiment;
• 3 a schematic representation of a projection surface of a HUD according to a second embodiment; and
• 4 a schematic representation of a projection surface of a HUD according to a third embodiment.

1 shows a schematic representation of the view of a driver through the windshield 50 his vehicle while driving the vehicle on the lane 42 a street. As described, inter alia, by Lappi et al. the driver focuses his attention on an area of the lane by default 42 at the height of the horizon line 43 , Thus, a width B corresponds to this fixation area 10 approximately the width of a projection along the line of sight of the driver 41 between the horizon line 43 and the lane 42 on the windshield 50 of the vehicle. The vertical height V of the fixation area 10 is less than its width B, so that in total an approximately ellipsoidal fixation area 10 results whose major axis said cutting line 41 is.

2 shows a schematic representation of a projection surface 20 a head-up display, HUD, the vehicle according to a first embodiment of the method according to the invention. In this case, the projection surface extends 20 almost over the entire height of the windshield 50 , Only a top section of the windshield 50 is excepted to avoid blinding the driver when viewing projected display content. The projection screen 20 is arranged to cover almost the entire front of the driver visible portion of a vehicle-driven road, in particular their busy right lane 42 , superimposed. The fixation area 10 at the height of the horizon line 43 is completely within the projection surface 20 arranged.

In the fixation area 10 no display contents are displayed so that the driver in the fixation area 10 has a clear view of his environment and is not distracted. The remaining projection surface 20 is partly a first display area 21 and a second display area 22 segmented, separated from each other and not overlapping below the fixation area 10 in the projection screen 20 are arranged. In this case, the first display area extends 21 from a lower edge of the screen 20 upwards and is the second display area 22 between the first display area 21 and the fixation area 10 arranged.

According to the in 1 in the first display area 21 first information 31 which are in particular graphical warnings for tracking and for holding a directional speed. In the second display area 22 become second information 32 displayed, which is in particular a maneuver arrow, the augmented way of the lane 42 is superimposed and signaled a next maneuver, such as a lane change or cornering. In this case, the driver can the graphic warnings of the first information 31 capture peripherally and yet adequately respond by small steering angles and acceleration or braking. To process the maneuver arrows of the second information 32 a higher cognitive effort on the part of the driver is necessary. Because the second display area 22 closer to the fixation area 10 is displayed, the driver takes the second information 32 less peripheral true, which facilitates their conscious processing.

3 shows a schematic representation of a projection surface 20 a head-up display, HUD, the vehicle according to a second embodiment of the method according to the invention. This differs from the projection screen 20 in 2 in that the second display area 22 the entire projection surface 20 between the first display area 21 and the horizon line 43 fills. Thus, augmentation using the second information 32 , in particular the maneuvering arrows, better adapted to the actual conditions of the environment, such as the multi-lane of lanes. In addition, the first display area is different 21 and the first information 31 not from the related to 2 described.

The in the 3 represented projection surface 20 is further into a third display area 23 segmented above the horizon line 43 and the fixation area 10 in the projection screen 20 is arranged. In the third display area 23 Be navigation data as third information 33 displayed. The navigation data 33 in particular include a destination as well as the current distance to the destination and the direction of the destination. This information is read in from a navigation system of the vehicle.

The navigation data 33 the driver must consciously perceive and make a knowledge-based decision as to whether the presented route guidance and route is correct or agrees with them. Therefore, the third display area 23 especially near and above the fixation area 10 arranged. Because of the above fixation area 10 arranged part of the projection screen 20 smaller than the part of the projection surface arranged below the fixation area 20 , are the third information 33 on average closer to the fixation area 10 arranged as the first information 31 and as the second information 32 , This has a positive effect on the conscious perceptibility of the navigation data 33 The representation of the navigation data above the fixation area 10 also offers, as an augmentation of navigation data 33 is unnecessary.

4 shows a schematic representation of a projection surface 20 a head-up display, HUD, the vehicle according to a third embodiment of the method according to the invention. This is different from the one in 3 shown projection surface 20 in that a fourth display area 24 temporarily from the first display area 21 is shown superimposed. The fourth display area is adjacent 24 directly to a lower edge of the screen 20 and thus has the greatest possible distance to the fixation area 10 on. Within the fourth display area 24 become fourth information 34 displayed without reference to the driving task.

The fourth information 34 should distract the driver as little as possible from the driving task and are thus in the furthest possible distance to the fixation area 10 arranged.

At the fourth information 34 these are, in particular, infotainment-related information, such as the names of recorded music, RDS or station information, or the like. The fourth display area 24 is displayed only temporarily, in particular after a driver input and / or only after and for a certain period of time. The graphic warnings 31 , which only partially coincide with the fourth information 34 are displayed, are thus only temporarily obscured, and the driving task can be safely met.

LIST OF REFERENCE NUMBERS

10

fixation area

20

projection

21

first display area

22

second display area

23

third display area

24

fourth display area

31

first information

32

second information

33

third information

34

fourth information

41

intersection

42

lane

43

horizon line

50

Windshield

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2990266 A1 [0005]
• US 2014/0268353 A1 [0006]
• DE 102014000803 A1 [0007]
• US 2013/0076787 A1 [0008]

Claims (15)

Method for displaying information (31, 32) in a head-up display, HUD, of a vehicle, comprising the method steps: - Determining a fixation area (10) of a driver of the vehicle; - Segmenting a projection surface (20) of the HUD in at least a first display area (21) and a second display area (22) different from the first display area (21), wherein the first display area (21) has a greater distance from the fixation area (10) as the second display area (22); and Displaying first information (31) in the first display area (21) and displaying second information (32) different from the first information (31) in the second display area (22). Method according to Claim 1 wherein the fixation area (10) overlays the projection area (20) of the HUD, further comprising the step of: - keeping free the fixation area (10) of projections of the HUD. Method according to Claim 1 or 2 wherein the projection surface (20) is disposed on at least a portion of a windshield (50) of the vehicle. Method according to one of the preceding claims, wherein the fixation region (10) is formed by a set of intersections between headers of a driver and a windshield (50) of the vehicle. Method according to Claim 4 , wherein the line of sight of the driver is detected at least temporarily or determined on the basis of at least temporarily acquired measurement data. Method according to one of the preceding claims, wherein the horizontal width (B) of the fixation region (10) has a width of the projection of a cutting line (41) between a lane (42) traveled by the vehicle and the horizon line (43) onto a windshield (50). and corresponds along a line of sight of the driver. Method according to one of the preceding claims, wherein the fixation region (10) in an upper third of the projection surface (20) and / or in the upper third of a windshield (50) of the vehicle is arranged. Method according to one of the preceding claims, wherein the first display area (21) is arranged in a region of peripheral vision of a driver of the vehicle and / or wherein the first information (31) of the stabilization of the vehicle information serving. Method according to one of the preceding claims, wherein the second display area (22) between the first display area (21) and the fixation area (10) is arranged and / or wherein the second information (32) of the web guide of the vehicle serving information. Method according to one of the preceding claims, further comprising the steps: Segmenting the projection surface (20) into a third display region (23) different from the first display region (21) and the second display region (22), wherein the third display region (23) is closer to the fixation region (10) than the third display region (23) first display area (21); and Displaying third information (33) of different ones of the first information (31) and the second information (32) in the third display area (23). Method according to Claim 10 wherein the third display area (23) is arranged above the fixation area (10) and / or the third information (33) comprises navigation-related information. Method according to one of the preceding claims, wherein the cognitive effort for processing the information (31, 32, 33) displayed in a display area (21, 22, 23) is inversely proportional to the distance of this display area (21, 22, 23) the fixation area (10) stands. Method according to one of the preceding claims, wherein a fourth display area (24) for displaying fourth information (34) without reference to the driving task is at least temporarily displayed along a lower edge of the projection area (20). A vehicle display system, comprising: - a head-up display, HUD, for projecting information onto a windshield (50) of the vehicle; and a method of performing a method according to any one of Claims 1 to 13 equipped control unit. Vehicle with a display system after Claim 14 ,

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