DE102017212222B3 - Method for operating a display device of a motor vehicle, driver assistance device, and motor vehicle - Google Patents

Abstract

The invention relates to a method for operating a display device (14) of a motor vehicle (10). A driver assistance device (12) provides pilot data (S1) and determines a value of a probability with which a set of pilot data satisfies a pilot condition that describes a minimum requirement for the entirety of the provided pilot data for correctly performing a driving mode by the driver assistance device (12) (S3). The driver assistance means (12) assigns the detected value to a safety indicator area (23, 24, 25) which describes or represents a degree of reliability of execution of the drive mode by the driver assistance means (12) (S4). Depending on the security indicator area (23, 24, 25) with the assigned value, a display signal with a display content is generated (S5) containing at least the safety indicator area with the assigned value and a marking of the safety indicator area (23, 24, 25) with the associated one Value as the currently fulfilled safety indicator range (23, 24, 25). The indication signal is transmitted to the display device (14, S6).

Description

The invention relates to a method for operating a display device of a motor vehicle, preferably a piloted motor vehicle, which can be operated in a piloted driving mode.

Driver assistance systems support a user of the motor vehicle in certain driving situations, often with safety aspects and driving comfort in the foreground. When piloted or fully autonomous driving by the driver assistance system uses this information from pilot data, so for example information about a current speed of the motor vehicle, acceleration, information about a current position of the motor vehicle, information about a lane marking on a road, or information about or from other motor vehicles, or other road users (for example, pedestrians, motorcyclists, cyclists, or other piloted motor vehicles). Further exemplary pilot data may be, for example, information about weather and / or for example contamination of cameras, traffic signs, driving behavior or a difficult state or a difficult driving situation, a route section with a heavily predictable traffic situation, for example in a city center near schools or kindergartens, at construction sites or a game

A reliability of the implementation of such a piloted driving mode depends, even more than in a semi-autonomous driving mode, on the availability and quality of such pilot data. If essential pilot data are lacking, or if the motor vehicle travels in an area in which operation of a piloted vehicle is not permitted, the piloted driving mode is aborted and control of the motor vehicle is transferred to an occupant of the motor vehicle, the vehicle brakes and finally comes to a standstill ,

A piloted driving mode offers a lot of comfort to a user of the motor vehicle because the user hardly or not has to worry about the traffic and can use the time of the trip for other activities in the motor vehicle. Therefore, in a piloted driving mode, it is desirable that the occupant's attention be drawn to it very quickly so that he may need to take control of the vehicle. On the other hand, ease of use of his piloted-driving motor vehicle can be increased if the user does not constantly have to monitor the activities of the driver assistance system, but to remain calm in the motor vehicle and possibly to engage in other activities.

The DE 10 2013 110 909 A1 describes a device with a sensor, a controller and a display for a driven at least in a partial automatic driving mode motor vehicle. The device represents whether certain conditions are met so that the driver can recognize if any of these conditions are no longer or fully respected. Whether the driver assistance system can continue to drive in a piloted way or not, however, the driver can not derive.

From the DE 10 2013 110 852 A1 is a driver assistance system for at least partially automatic control of a motor vehicle known.

The DE 10 2011 101 708 A1 describes a method for automatically controlling a motor vehicle, wherein a traffic perception of a vehicle driver is monitored on the basis of an input of the vehicle driver.

The DE 10 2017 100 763 A1 concerns the control and operation of autonomous propulsion systems and semi-autonomous propulsion systems.

The DE 10 2014 201 965 A1 describes a control system for automatically controlled operation of a vehicle.

From the DE 10 2010 028 300 A1 a motor vehicle with a system for automatic lateral guidance is known, by the related to the motor vehicle (referring to the future) Solltrajektorienbeschreibung, such as a target trajectory, a corrected Solltrajekorie, a target steering angle, a desired steering angle sequence or a target Location sequence, etc., can be generated or created.

The DE 10 2014 118 479 A1 describes data that can be collected in relation to the autonomous operation of a vehicle.

The DE 10 2004 059 999 A1 relates to a driver assistance system for a motor vehicle having an output unit for outputting a reference relating to a driver-supporting function of the driver assistance system to the driver of the motor vehicle.

Only if a security does not meet the minimum safety criteria, the driver gets a message about a transfer of control to the user very spontaneously and the user may be surprising, for example, when suddenly a sensor or a camera are dirty or the weather is worse. The longer the inmate needs to be on a spontaneous Passing the vehicle control to respond, the slower he can respond to the traffic.

An object of the invention is to improve a driving safety when handing over a motor vehicle control to the user of the motor vehicle.

The object is achieved by the method according to the invention and the devices according to the invention according to the independent claims. Advantageous developments are given by the dependent claims.

The invention is based on the idea of providing an optical, representative safety indicator that indicates how reliable the currently performed piloted driving mode is. For this purpose, based on the available pilot data, it is determined how high a probability with which a whole of the pilot data fulfills a pilot condition, ie what a degree of safety is. This determined probability is mediated by a visually perceptible display content. Only then can the user grasp how reliably or confidently the driver assistance system is currently performing the piloted driving mode. The method according to the invention thus makes it possible to impart the reliability of the piloted driving mode in a manner that takes into account the physical conditions of human perception and the taking up of information and in the first place enables the perception of the corresponding information.

The method according to the invention for operating a display device of a motor vehicle, preferably a piloted motor vehicle, has the following steps performed by a driver assistance device of the motor vehicle. In this case, a display device is understood to mean a device or a device component which is designed to output a video and / or video signal and may have, for example, a screen for this purpose. A driver assistance device is understood to be a device or a device component for carrying out an at least partially autonomous or fully autonomous driving mode, which can be set up, for example, as a driver assistance system. Preferably, the driver assistance device can be set up to carry out a piloted driving mode.

Firstly, provision is made of pilot data, and determination of a value of a probability with which a whole of the pilot data satisfies a pilot condition, the pilot condition describing a minimum requirement for the entirety of the provided pilot data for the correct execution of a driving mode by the driver assistance device.

The method is characterized by associating the determined value of the probability of a predetermined safety indicator range, which describes or represents a degree of reliability of the execution of the driving mode by the driver assistance device. The predetermined safety indicator area thus describes the reliability with which the driving mode, preferably the piloted driving mode, is or can be performed. In other words, the safety indicator area is the range of values into which the determined value of the probability falls. In other words, a safety indicator area represents an assessment of a reliability of the pilot data and thus the safety status.

Depending on the security indicator area with the associated value of the probability, a display signal is generated which describes a display content, wherein the display content describes at least the safety indicator area with the assigned value and a marking of the safety indicator area with the assigned value as the currently fulfilled safety indicator area. Preferably, the display content may describe a plurality of safety indicator areas. There is a transmission of the generated display signal to the display devices.

The display content may preferably describe a graphical representation of the at least one safety indicator region. Preferably, the display content may describe the determined value as numerical value and / or as text, and / or the at least one safety indicator area in a bar graph and / or a pie chart and / or an image of an analog scale.

The inventive method reduces the disadvantages described above and allows the advantages described above. A driving safety is significantly increased because it is now possible for the user of the motor vehicle to detect how reliably the current driving mode is performed. In other words, a security of the system, so the driver assistance system, better represented. Sudden surprises by spontaneously transferring the vehicle control to the user are significantly reduced. The user can intervene much earlier and take command. The user of the motor vehicle can detect a tendency of safety and be prepared early for the transfer of the command.

Advantageously, the display content may describe a plurality of security indicator areas, one of which may be one of the security indicator areas with the associated, determined value. This is a particularly advantageous embodiment of the method according to the invention, since the user can estimate, for example by marking, whether, for example, a current value of the probability is in the vicinity of another area where the driver assistance device operates very reliably, or for example very close to one another safety indicator area representing a high probability of early handover of vehicle control. In other words, an orientation of the user is significantly improved.

According to a further, particularly preferred embodiment of the method according to the invention, the driver assistance device can perform a provision of a travel route, and, depending on a course of the travel route, subdivide the travel route into travel route sections. For each of the travel route sections, the driver assistance means may perform prediction of at least one travel route section value of the probability with which a total of the pilot information presumably available in the respective travel route section the piloting condition will be met, and assign each of the predicted travel route section values to one each predetermined safety indicator area. Optionally, multiple travel route section values of multiple travel route sections may be assigned to the same safety indicator area. Corresponding pilot data can originate, for example, from other motor vehicles which, for example, have just traveled on the itinerary section. The display signal can describe the respective travel route sections and the respective, associated safety indicator area.

This allows a particularly good predictive driving, since the user can already detect, for example, before the trip or at the start of travel, how reliably the driving mode will be performed in the individual itinerary sections. The user can thus prepare for a takeover of the control of the motor vehicle particularly early, which is why the driving safety is increased even more.

The pilot data may preferably include coordinates of a geographical map and / or a topicality of map data and / or weather information and / or environmental data from a sensor device, preferably a sensor device of the motor vehicle, and / or motor vehicle external pilot data other motor vehicles and / or traffic information data - such as construction sites, a Quality of a road, places with unpredictable road users (for example children or cyclists) or traffic situations, confounding factors such as crossing wildlife. An accuracy of the classification into the at least one security indicator area and thus an improvement in the accuracy of the security level or reliability represented by the at least one security indicator area can be increased if the determination of the value of the probability takes into account a priority of the individual pilot data, preferably wherein an information is up-to-date of map data and / or traffic information data and / or information about a lane marking have a high priority. In other words, by this embodiment of the method according to the invention, a weighting of the pilot data takes place. The exemplary topicality of the map data may in particular be an up-to-dateness of the map data in a difficult-to-drive location, for example a construction site.

The display content may include the determined value and / or the at least one safety indicator area, for example as numerical value and / or as text and / or color and / or graphical form and / or symbol - for example an emoticon of a laughing, neutral or sad face or person - and / or cartoon and / or three-dimensional shape and / or each animated describe. An exemplary emoticon can optionally be colored in accordance with the represented safety indicator area. For example, for a circle as a symbol, a rating may be represented as "very secure," with a star as "unsafe" and / or as "not 100% certain" with a spot.

Especially with such a description of the security indicator area, the user can quickly grasp the current security assessment. For an even faster interpretation of the security indicator and better clarity, the display content can describe the determined value and / or the at least one safety indicator area particularly preferably in a bar chart and / or in a pie chart. In the case of a predictive prediction of the safety indicators, the display content may describe the determined value and / or the safety indicator range, in particular in a line diagram of a coordinate system, for example in a coordinate system in which the at least one safety indicator range is specified over a route, for example by specifying the kilometers of the travel route or a travel duration. Describing the display content multiple security indicator areas, it is particularly advantageous if the display content of the determined value and / or the at least one safety indicator area in a logarithmic diagram describes. So even small gradations are better visible.

Alternatively, the display content may describe the detected value and / or the safety indicator range in a donut or in an analog scale. In particular, the display content may represent the determined value and / or the safety indicator area in a logarithmic bar chart. Logarithmic equalization can be used to stretch a safety bandwidth that can be piloted, and which can usually be very narrow, so that it is more understandable to the user and smaller gradations are easier to see. Users can thus better estimate any uncertainties in the system and intervene earlier.

Optionally, upon reaching an uncertainty, an alarm may be issued, for example as a warning sound, graphics - for example, output on a screen of the motor vehicle or a mobile terminal - and / or shaking a motor vehicle seat. The display content can also be output as haptic feedback or audio content, for example.

According to a further embodiment of the method according to the invention, the display content can describe at least two safety indicator regions as a function of their respective value range, preferably as an image of the value ranges as bar portions which are arranged successively along a respective main extension direction of the respective bar portion, preferably wherein the display content equalizes the successive value ranges logarithmically can describe. This results in the advantages already mentioned above, which have already been described for presentation as a logarithmic bar chart.

The object set out above is also achieved, while achieving the advantages already mentioned, by a driver assistance device which can be designed, for example, as a driver assistance system, wherein the driver assistance device is set up to carry out a method according to one of the embodiments described above. The driver assistance device can preferably have a processor device, that is to say a device or a device component for electronic data processing. The processor device may ideally have at least one microcontroller and / or at least one microprocessor. The processor device can be set up to execute a program code stored in a data memory, wherein the program code is set up to cause the driver assistance device to execute an embodiment of the method according to the invention when it is executed by the processor device.

The above object is achieved by a motor vehicle, preferably a motor vehicle such as a passenger car, which has a display device and is characterized by an embodiment of the driver assistance device according to the invention. It results in the above advantages.

• 1 eine schematische Darstellung zu einem ersten Ausführungsbeispiel des erfindungsgemäßen Verfahrens;
• 2 eine schematische Darstellung zu einem weiteren Ausführungsbeispiel des erfindungsgemäßen Verfahrens; und
• 3 eine schematische Darstellung zu einem weiteren Ausführungsbeispiel des erfindungsgemäßen Verfahrens; und
• 4 eine schematische Darstellung zu einem weiteren Ausführungsbeispiel des erfindungsgemäßen Verfahrens.

In the following, embodiments of the invention are described. This shows:

• 1 a schematic representation of a first embodiment of the method according to the invention;
• 2 a schematic representation of another embodiment of the method according to the invention; and
• 3 a schematic representation of another embodiment of the method according to the invention; and
• 4 a schematic representation of another embodiment of the method according to the invention.

The exemplary embodiments explained below are preferred embodiments of the invention. In the exemplary embodiments, the described components of the embodiments each represent individual features of the invention, which are to be considered independently of one another, which also develop the invention independently of each other and thus also individually or in a combination other than that shown as part of the invention. Furthermore, the described embodiments can also be supplemented by further features of the invention already described.

In the figures, functionally identical elements are each provided with the same reference numerals.

The 1 illustrates the principle of the method according to the invention with reference to a first embodiment. This shows the 1 a motor vehicle 10 , which can be configured for example as a piloted passenger car.

The car 10 has a driver assistance device 12 on, which can be configured and / or set up, for example, as an on-board computer or as part of an on-board computer with a driver assistance system or as a correspondingly configured control board. Preferably, the driver assistance device 12 a processor device 13 and / or a data store 15 exhibit. The processor device 13 can preferably have at least one microcontroller and / or at least one microprocessor. The data store 15 may be configured as a data store known to those skilled in the art, and optionally may be stored on the data store 15 a program code for carrying out the method according to the invention may be stored.

The car 10 also has a display device 14 on, which may have, for example, a screen and / or a head-up display, for which purpose devices known from the prior art can be used. Includes the display device 14 For example, a screen, this can for example in a center console or instrument panel of the motor vehicle 10 be arranged. The car 10 can be operated in a piloted driving mode.

Of the 1 shows an optional navigation device 16 , which may be configured for example as a common navigation system or navigation device. The optional navigation device 16 For example, it may provide a travel route from a starting point to a destination and / or a satellite-based position signal, such as a GPS signal, from an off-board transmitter, such as a satellite.

The individual devices of the motor vehicle 10 can each be through a data communication connection 17 be connected to each other, wherein a data communication connection 17 a wireless or a wired data communication connection 17 can be. Preferably, the data communication connection may be 17 to a data bus of the motor vehicle 10 act, such as a CAN bus, or via a wireless data communication connection 17 which may be, for example, a Wi-Fi or Bluetooth connection.

In a first method step S1, the driver assistance device 12 Pilot data ready, for example, map data from the navigation device 16 and / or information on a current position of the motor vehicle 10, which can be determined, for example, based on the above-mentioned position signal and / or data from other motor vehicles and / or data from a sensor device 18 For example, data from a rear camera or a proximity sensor of a distance control system of the motor vehicle 10 , Current map data may, for example, have been provided from a data cloud or by means of a vehicle-to-vehicle connection from another motor vehicle. The sensor device 18 is set up as a device or component for detecting physical, chemical or other conditions or properties of the environment and can have at least one sensor for this purpose. The sensor device 18 can have common sensors of a piloted motor vehicle.

Optionally, the individual Pilotierdaten by the Fahrerassistzeinrichtung 12 be assigned a priority (S2). For example, a topicality of the map data and / or information about an existing or missing lane marking can be assigned a very high priority. Such a priority may be taken into account in determining the value of, for example, a current probability (S3) at which the entirety of the currently available pilot data meets the piloting condition.

In the example of 1 can the motor vehicle 10 For example, located on a highway between Munich and Ingolstadt, where the lane markings are complete and easy to detect, and where, for example, by the sensor device 18 detectable orientation plates for piloted motor vehicles can be installed. For example, the weather can be very good right now and the map data can be up to date. Due to the good weather, for example, a mobile connection of the driver assistance device 12 to an off-board data server, from which current weather data and / or weather forecast data can be retrieved, be very good, as well as a GPS reception. Sensors of the sensor device 18 For example, they can easily be coated with dust or water, of which, however, functionality of the sensor device 18 may be only slightly affected, so that the sensor device 18 continues to deliver reliable signals.

As probability in the example of the 1 For example, it is determined (S3) that a reliability of the pilot data and thus a reliability of the vehicle control by the driver assistance device 12 for example, at 99.99991%. Such a calculation may, for example, be with one in the data memory 15 deposited algorithm can be performed. In the optional prioritization of pilot data, for example, the individual pilot data can be assigned a value according to their priority, whereby a corresponding algorithm can take into account the value for determining the value of the probability (S3).

For example, it may be preset that between a hundred percent reliability of the carried driving mode and a value of the probability, which may for example be 99.99% and in which the driver assistance device 12 would cancel the piloted drive mode into two safety indicator areas divide. For example, a first range of values could include a range of values from 99.9999% to 100%, and this safety indicator range could, for example, describe or represent the degree of "very reliable." For example, another range may span a range of 99.99% to 99.9999% of the probability, and this range may be associated, for example, with the "less reliable" rating.

Thus, for example, if the detected value is 99.995% because, for example, the reception of the GPS signal deteriorates, this value may be assigned to the safety indicator area "less reliable" (S4). The user can adjust in this case to the fact that the control of the motor vehicle 10 may soon be handed over to him. For example, if there is no information about a lane marking at one time, the value may, for example, be mapped to another safety indicator area with the assessment "driving mode not possible", so that the user knows he needs to react there immediately.

The division of the safety indicator areas can be done, for example, based on empirical values, and the corresponding values and / or value ranges and / or limits of each safety indicator area can be stored, for example, in the data memory 15 be deposited.

The driver assistance device 12 generates an indication signal (S5), so for example an image signal or a video signal whose display content describes at least that safety indicator area with the determined value, preferably a plurality of safety indicator areas. The further security indicator areas can preferably be those security indicator areas which can adjoin the security indicator area with the assigned value. The indication signal is then sent to the display device in method step S6 14 transfer.

The display device 14 can then output the transmitted indication signal (S7), thus indicating the display content. The 2 shows the display device 14 exemplified on a display surface 20 display an image described by the output display signal (S7). For example, the example image shows two bars 22 in a bar chart, with the bottom bar 22 a left-hand bar portion for representing a first security indicator area 23 , a middle bar portion for representing another security indicator area 24 and a right-hand bar portion for representing a security indicator area 25 can have. The security indicator area 23 For example, it may be colored red and represent the exemplary judgment "driving mode not possible". The middle security indicator area 24 For example, it may be colored orange and represent the security indicator area "less reliable" and, optionally, the arrow A may be the boundary between these two security indicator areas 23 . 24 at the abort of the exemplary piloted driving mode by the Fahrerassistzeinrichtung 12 can be initiated. The safety indicator area shown on the right 25 may be exemplified in green and represent the assessment or assessment "very reliable".

The two safety indicator areas "very reliable" and "less reliable" can also be referred to as a "safety zone" in which the driver assistance device 12 the car 10 still driving independently drives.

The upper bar 22 For example, it can be configured as a number bar and optionally specify the numerical values "0%", "99.99%", "99.9999%" 100% ". This upper bar 22 Optionally, it may additionally comprise a marking bar whose length may correspond to the determined value. In the 2 For example, the end of the hatched marker bar is between 99.9999% and 100%, closer to 100%. The security indicator area 25 , which is associated with the current determined value, can be marked in the case of 2 So based on the length of the hatched marker bar. The user visually quickly grasp that the driver assistance device 12 currently assessing the piloted driving mode as "very reliable" and that changing the "less reliable" rating is less likely at the moment.

Alternatively, the upper and lower beams can also be in a single beam 22 can be represented unified, ie summarized, for example, the hatched marking bar according to the safety indicator area 23 . 24 or 25 can be marked in color. For example, an absolute value may be displayed at one end of the marker bar.

The 3 shows a similar display with a display content, as already for 2 described below, with only the differences being discussed below.

In the example of 3 include the safety indicator areas 23 . 24 . 25 other ranges of values as an example of 2 as by the upper bar 22 and whose value assignment can be taken. An abort of the piloted driving mode and thus an assessment "driving mode not possible" takes place by way of example already from a value of about 99.995%, ie the safety indicator range 23 "Driving mode not possible" is also assigned with a determined value of 99.995%. The security indicator area 24 may for example comprise a range of 99.995% to 99.9999%.

Both the 2 , as well as the 3 illustrate the efficiency of a logarithmic equalization plot.

The driver assistance device 12 may, according to another embodiment, provide a travel route (s. 1, S8 ), for example, from the navigation device 16 can be received. The provided itinerary may be, for example, the travel route from Munich to Ingolstadt and, for example, 90 kilometers long. The driver assistance device 12 Depending on the course, it may divide the itinerary into itinerary sections (S9), for example, into sections of 10 kilometers or five kilometers or one kilometer of a route route length, or into sections of 10 minutes or 5 minutes, or, for example, two minutes of travel time. For each of the travel route sections, it may be predicted, for example, which pilot data may be present (S10), and then it can be predicted (S11) with which probability for each of the travel route sections with each of a total of the pilot data available in the respective travel route section Piloting condition will meet. The corresponding value may then be referred to as the itinerary section value. Each of the individual itinerary section values may then be one of the safety indicator areas 23 . 24 . 25 be assigned (S12).

The 4 shows a corresponding, on the exemplary display area 20 output image that can be displayed by the generated indication signal (S7). The picture shows a curve diagram 26 where for example on an abscissa (X-axis) 26 for example, the determined value of the probability and / or the safety indicator area ( 23 . 24 . 25 to a travel parameter on the coordinate (Y-axis) 28 which may, for example, be a journey duration in minutes or hours, or a route length in kilometers. The dashed lines serve to better illustrate the boundaries between the safety indicator areas 23 . 24 . 25 ,

The graph of the 4 shows that - except for a travel section at, for example, 38 kilometers and / or 24 minutes ("38", "0:24") and a travel section at, for example, 75 kilometers and / or after 45 minutes of driving ("75", "0: 45 ") - the curve is very flat, and this flat part can serve as a safety indicator area 25 for example, be colored green. For example, in the exemplary 38 kilometers, it may be predicted that the likelihood is reduced due to, for example, worsening weather caused by a momentary increase in the curve, the peak of which is orange, for example, and the safety indicator area 24 can be shown. For example, after 75 kilometers, for example, due to a lack of lane markings, the determined value may be so low that the piloted driving mode must be canceled, which may be represented by the top of the curve at 75 kilometers. For example, the upper portion of the curve may be red, the middle portion for the safety indicator range 24 for example, be colored orange.

Overall, the examples illustrate how the invention provides a safety indicator for preferably piloted motor vehicles 10 provided.

Preferably, a piloted motor vehicle 10 for example, in an interface as display devices 14 indicate a security, so a safety indicator with which the motor vehicle 10 can drive independently. This allows the user to be better informed ahead of time of how safe the piloted ride is.

According to a further embodiment, the exemplary piloted motor vehicle 10 For example, due to reliability of data sources that provide, for example, maps and / or weather information and / or data from other vehicles and / or data from, for example, cameras and / or sensors, calculate a level of security with which to drive in a piloted manner. The level of security is expected to be rare or never 100%, but may affect the 100%. For example, with some uncertainty due to lack of data and / or polluted sensors or cameras, and / or bad weather such as ice, snow, or fog, safety may become smaller. With a certain uncertainty (for example, 99.99%), it may be provided, for example, that the user must take over driving. The safety margin in which piloted driving can be very tight, but it can be extended or equalized to the user or occupant so that it is more understandable to the user or occupant. For example, a bandwidth of 99.9% to 99.9999999 percent or more may be logarithmically equalized. This allows the inmate or user to better assess the uncertainties in the system and intervene earlier.

This results in the advantages already mentioned above.

Claims (9)

A method of operating a display device (14) of a motor vehicle (10), the method comprising the following step performed by a driver assistance device (12) of the motor vehicle (10): - providing pilot data (S1), and - determining a value of a probability, wherein a set of the pilot data satisfies a pilot condition describing a minimum requirement of the entirety of the provided pilot data for correctly executing a drive mode by the driver assistance means (12) (S3), the method characterized by the following steps performed by the driver assistance means (12) Assigning the determined value of the probability to a predetermined safety indicator area (23, 24, 25), which describes or represents a degree of reliability of the execution of the driving mode by the driver assistance means (12) (S4), in dependence on the safety indicator b (23, 24, 25) with the associated value of the probability: generating an indication signal with a display content (S5) including at least the safety indicator range with the assigned value and a mark of the safety indicator range (23, 24, 25) with the associated value as currently filled security indicator area (23, 24, 25) describes, and - transmitting the generated display signal to the display device (14, S6). Method according to Claim 1 , characterized in that the display content describes a plurality of safety indicator areas (23, 24, 25). Method according to one of the preceding claims, characterized by the following steps carried out by the driver assistance device (12): - providing a travel route (S8), - depending on a course of the travel route: dividing the travel route into travel route sections (S9), - for each the travel route sections: predicating at least one travel route section value of the probability that each one of the probable pilot data available in the respective travel route section will satisfy the piloting condition (S11), and associating each of the predicted travel route section values with a predetermined safety indicator area (23 , 24, 25), wherein the indication signal describes the respective travel route sections and the associated safety indicator areas (23, 24, 25). Method according to one of the preceding claims, characterized in that the piloting data coordinates of a geographical map and / or an actuality of map data and / or weather information and / or environmental data from a sensor device (18) and / or motor vehicle external pilot data of other motor vehicles and / or traffic information data describe. Method according to one of the preceding claims, characterized in that the determination of the value of the probability (S3), with which the entirety of the pilot data fulfills the piloting condition, takes into account a priority of the individual pilot data, preferably wherein information on an actuality of map data and / or Traffic information data and / or information about a lane marking have a high priority. Method according to one of the preceding claims, characterized in that the display content describes the determined value and / or the at least one safety indicator area (23, 24, 25): - as numerical value, and / or - as text, and / or - in a bar chart , and / or - in a pie chart, and / or - in a line diagram of a coordinate system, and / or - in a logarithmic diagram, and / or - in a ring diagram or in an analogue scale; wherein the display content preferably describes the determined value and / or the at least one safety indicator area (23, 24, 25) in a logarithmic bar chart. Method according to one of the preceding claims, characterized in that the display content describes at least two safety indicator regions (23, 24, 25) depending on their respective value range, preferably as an image of the value ranges as beam portions, which are arranged along a respective main extension direction after each other, preferably the display content describes the successive value ranges logarithmically equalized. Driver assistance device (12), characterized in that the driver assistance device (12) is adapted to carry out a method according to one of the preceding claims, the driver assistance device (12) preferably having a processor device (13). Motor vehicle (10), comprising a display device (14), characterized by a driver assistance device (12) according to Claim 8 ,

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