DE102015209004A1 - Method and device for displaying information relevant to a driver of a vehicle in a driving mode transition - Google Patents

Abstract

A method and apparatus for displaying information relevant to a driver of a vehicle about a current traffic situation by outputting graphic driving advice to assist a driver in performing a driving maneuver, in the transition from a phase of a high-automatic driving mode to a phase of a manual driving mode, the following Steps out of: - detection of information relevant to the driver in the transition from a phase of a highly automatic driving mode to a phase of a manual driving mode, during the phase of the highly automatic driving mode; Storage of the information as currently valid information after the transition; and - display the currently valid information if the driver resumes the driving task in manual driving mode after a phase of the highly automatic driving mode. Information relevant to the driver includes, for example, static and dynamic restricted areas, lane-related speed limit information, lane block information, overtaking prohibition information, temporary lane traffic information.

Description

The invention relates to a method for displaying information relevant to a driver of a vehicle according to the preamble of claim 1 and to a corresponding device for carrying out the method according to the preamble of claim 8.

Methods for displaying information relevant to a driver of a vehicle by means of a suitable display, such as a head-up display, are known from the prior art. For example, known solutions show graphic driving instructions in the form of a lane change warning, the highlighting of a lane to be traveled or the projection of a marking of a traffic sign in relation to the line of sight of the driver. Furthermore, methods are known in which driving instructions are displayed by contact analog representation in a head-up display.

The publication DE 10 2011 006 347 A1 relates to a method for outputting graphic driving instructions to assist the driver of a motor vehicle when performing a driving maneuver, wherein the graphical driving instructions are output by a provided on the motor vehicle head-up display. For this purpose, the following steps are carried out in succession: Output of a graphic driving instruction in the form of a lane change instruction, which directs the driver from a maneuvered lane to a target lane, outputting a graphical driving instruction in the form of a contact-analogue lane marking which indicates the desired lane graphically compared with other lanes, outputting a graphic driving instruction in the form of a contact-analogue maneuvering pulse comprising a driving lane emanating from the target lane and corresponding to the driving maneuver, and outputting a graphic driving instruction in the form of a symbolic maneuvering indication indicating the commenced driving maneuver after entry of the vehicle into symbolically indicates the travel tube. The graphical driving instructions are output by a head-up display and lane change indications are displayed based on, among other things, a contact-analogous marking of the lane to be traveled.

The publication DE 10 2011 121 948 A1 discloses a method for informing a motor vehicle driver of a driving maneuver planned by a driver assistance system and performed by the motor vehicle, wherein the driver assistance system cyclically detects a current traffic situation based on environmental data, plans a driving maneuver based on the acquired environmental data, and manages the driving maneuver and at least part of the detected environmental data represents a picture on a display.

The publication DE 10 2008 061 649 A1 shows a driver assistance system comprising sensors for detecting the vehicle environment, adjusting elements for engaging in the vehicle dynamics and a display unit for displaying system states of the driver assistance system, wherein the driver assistance system comprises at least one longitudinal guidance assistance function. In this case, a detected preceding motor vehicle is shown three-dimensionally in perspective on the display unit.

The publication DE 10 2013 002 533 A1 relates to a method for displaying information of a system, in particular of a motor vehicle, by means of at least one control unit and a display unit, wherein on the display unit at least one information about the state of the system is displayed. In this case, the motor vehicle has at least one mode for automatic driving.

In the future, vehicles will be able to drive in sections in a highly automated manner. The driver then no longer has to carry out the driving task permanently and does not permanently monitor the vehicle. Rather, he is allowed to carry out ancillary activities and, for example, read a book or write e-mails, since in the highly automatic driving mode, the driver assistant takes control of the vehicle.

If the driver wants to take over the driving task again or has to take over, he regularly has not all the relevant traffic information, such as speed limits or locked lanes available due to the previously practiced sideline activities. He therefore lacks essential information to perform the driving activity, which he missed during the highly automated drive, because he can not fully absorb all of the above information by distraction or in the case of automatic driving by sideline activities.

The relevant traffic information includes, among other things, information about speed limits or locked lanes. Lanes may be temporarily closed on roads and in particular on motorways and may not be used. In addition, certain lane areas may be reserved for other road users, for example for construction site or special purpose vehicles. In addition, there are also lane-related Differences, for example with regard to the maximum permissible speed.

Static restricted areas, for example locked lanes, are indicated, among other things, by gantries. By distraction, or in the case of highly automatic vehicle guidance by ancillary activities, the driver may not be able to fully absorb all the information mentioned. For example, a driver may not always be aware that a lane may not currently be driven on or that different maximum permitted speeds may apply to parallel lanes.

It is an object of the invention to provide a method and an apparatus of the type mentioned above, which can provide the driver with the relevant information in a takeover situation from the highly automatic drive mode to the manual drive mode to perform the task correctly after the takeover can.

This object is achieved by a method having the features of claim 1 and an apparatus having the features of claim 8. Preferred embodiments of the invention are subject matters of the subclaims.

• – Detektion von Informationen, die für den Fahrer beim Übergang von einer Phase eines hochautomatischen Fahrmodus in eine Phase eines manuellen Fahrmodus relevant sind, während der Phase des hochautomatischen Fahrmodus,
• – Speicherung der Informationen als nach dem Übergang aktuell gültige Informationen, und
• – Anzeige der aktuell gültigen Informationen, wenn der Fahrer nach einer Phase des hochautomatischen Fahrmodus wieder die Fahraufgabe im manuellen Fahrmodus übernimmt.

The inventive method for displaying information relevant to a driver of a vehicle on a current traffic situation by outputting graphical driving instructions to assist a driver in performing a driving maneuver performs the following steps in the transition from a phase of a highly automatic driving mode to a phase of a manual driving mode :

• Detection of information relevant to the driver in the transition from a phase of a highly automatic driving mode to a phase of a manual driving mode, during the phase of the highly automatic driving mode,
• Storage of the information as information which is currently valid after the transition, and
• - Display of the currently valid information, if the driver takes over the driving task in manual driving mode after a phase of the highly automatic driving mode.

• – statische und dynamische Sperrbereiche,
• – Informationen zu fahrstreifenbezogenen Geschwindigkeitsbegrenzungen,
• – Informationen zu Fahrstreifensperrungen,
• – Informationen zu Überholverboten, und
• – Informationen zur vorübergehenden Befahrbarkeit von Standstreifen.

Preferably, the information relevant for the driver in the transition from a highly automatic driving mode to a manual driving mode comprises one or more of the following information, the enumeration not being conclusive:

• - static and dynamic stop bands,
• - information on lane-related speed limits,
• - information about lane closures,
• - information on overtaking bans, and
• - Information on the temporary trafficability of hard shoulder strips.

With the help of the representation of static and dynamic restricted areas and lane-related information, driver uncertainties regarding the prevailing traffic rules are minimized.

The information relevant for the driver is preferably sorted according to its urgency, in particular accident risk and time or distance of a collision event.

More preferably, the driver-relevant information is displayed at the request of the driver or upon acceptance from a highly automatic driving mode for a predetermined period of time after the takeover. In this case, the predetermined period may be, for example, in the range of 20 seconds.

A further advantageous embodiment of the method according to the invention is that a warning is issued when the driver violates the displayed information. The warning is preferably carried out by re-displaying the information.

Furthermore, the information relevant to the driver is preferably displayed by means of a contact-analogue head-up display.

In a further preferred embodiment, the relevant information is displayed to the driver by means of so-called augmented reality glasses.

• – eine Sensorik zur Detektion von Informationen während der Phase des hochautomatischen Fahrmodus, die für den Fahrer beim Übergang von einer Phase eines hochautomatischen Fahrmodus in eine Phase eines manuellen Fahrmodus relevant sind,
• – einen Speicher zur Speicherung der Informationen als nach dem Übergang aktuell gültige Informationen, und
• – ein Display zur Anzeige der aktuell gültigen Informationen, wenn der Fahrer nach einer Phase des hochautomatischen Fahrmodus wieder die Fahraufgabe im manuellen Fahrmodus übernimmt.

The device according to the invention for displaying information relevant to a driver of a vehicle about the current traffic situation by outputting graphic driving instructions to assist the driver in carrying out a driving maneuver comprises:

• A sensor system for detecting information during the phase of the highly automatic driving mode, which are relevant for the driver in the transition from a phase of a highly automatic driving mode to a phase of a manual driving mode,
• A memory for storing the information as currently valid information after the transition, and
• - A display for displaying the currently valid information, if the driver takes over the driving task in manual driving mode after a phase of the highly automatic driving mode again.

Preferably, the device has a computing unit for sorting and processing information relevant to the driver according to their relevance, in particular accident risk, time and / or removal of a collision event.

As a display, in particular, a contact-analogous head-up display is suitable for displaying the information relevant to the driver. In addition, so-called augmented reality glasses are also suitable for displaying this information.

Preferred embodiments of the invention are explained below with reference to the drawings. Show it:

1 schematically a driving environment are taken from the information relevant to the driver;

2 a first example of a display on which the driver the relevant information is displayed;

3 a second example of a display on which the driver the relevant information is displayed, and

4 a schematic representation of the change between automatic and manual driving.

1 shows a driving environment of a vehicle, which is on a four-lane road 6 emotional. The roadway includes the lanes 7 . 8th . 9 and 10 , where the lanes 7 and 8th currently not released for traffic, as indicated by the ads 1 and 2 the sign bridge 5 is shown. the other two lanes 9 and 10 are open to traffic, but are subject to speed limits. So may on the lane 9 only with a maximum speed of 130 km / h and on the lane 10 be driven with a maximum speed of 80 km / h, as indicated by the ads 3 and 4 the sign bridge is specified.

In the first step of the method, the detection and identification of these takes place in 1 exemplified and relevant to the driver information during a phase of highly automated driving. This information includes, for example, lane-related speed limits, lane closures, overtaking prohibitions, temporary trafficability of hard shoulder. Furthermore, the storage of the driver-relevant information takes place continuously for a predetermined period.

During a highly automatic drive, therefore, a sensor system of the vehicle identifies all relevant information of the current driving environment of the vehicle 1 namely the blocking area displays 1 and 2 concerning the lanes 7 and 8th as well as the maximum speed indicators 3 and 4 concerning the lanes 9 and 10 as they are on the sign bridge 5 are displayed. The relevant information is then stored for later use to assist the driver.

2 shows the view of the driver of the motor vehicle on the steering wheel 13 through the windscreen to the driving environment with the four lanes 7 . 8th . 9 and 10 the roadway 6 ,

A transition from a highly automatic drive to the manual drive mode, which may be made at the request of the driver, for example by keystroke, or by a driving-related necessity, must be made in 1 shown identified and stored current information to be conveyed to the driver. This is done using a contact-analogue headup display, as for example in 2 is shown. It shows 1 shows a first example of a display on which the driver is presented the relevant information.

In the display of 2 become the restricted areas 11 and 12 on the corresponding lane 7 and 8th by a corresponding identifier or representation, such as hatching, of the corresponding lanes 7 and 8th indicated. This identification can also be done via a corresponding color marking, for example in red. The lane-based maximum speed indications can be displayed on the corresponding lane 9 and 10 by reflecting suitable symbols 3 and 4 in the head-up display. By the reflections in the head-up display contact-analogue takes place, that is, the information is displayed so that they appear to the driver in his field of vision, so to speak, in the appropriate lanes. As a result, the driver can provide the relevant information directly to the respective restricted areas 11 and 12 or the lane 8th . 9 assign without having to take your eyes off the street.

The display of the currently valid information according to takes place for a defined period of, for example, 20 seconds, when the driver after a phase of highly automatic driving takes over again the driving task. The presentation of this information to the driver is therefore in a contact-analogous manner, so that lane-related information (trafficability, maximum speed) are displayed on this.

If the driver violates these despite the displayed information, for example the maximum lane speed 3 . 4 exceeds or prohibited areas 11 . 12 the information can be read again with the help of the in 2 displayed contact-analogue head-up displays and the driver thus be warned.

3 shows another example of a display on which the driver the relevant information is displayed. During the transfer scenario, the information continuously acquired and stored during the highly automatic drive mode is presented to the driver from the highly automatic drive mode to the manual drive mode and in this example shows a warning 14 for a faster vehicle in the adjacent lane, an abstract road topology 15 , a time display 16 over the remaining time for taking over the driving task, a speedometer 17 about the current speed limit and a traffic jam indicator 18 , which indicates an approaching end of jam. Further notes can be, for example, an end screen 19 over a terminating lane 20 or an ad 21 be about a threading vehicle. The headup display with the central information is supported in a combination display 22 which is schematically behind a steering wheel 23 is shown.

4 describes the alternation between automatic and manual drivers, whereby for the method of assisting the driver in changing from automatic to manual driving, the three states of manual driving mode MF, automatic driving state AF and takeover phase ÜP are to be distinguished.

In manual driving mode MF, the driver drives himself or partially automated assisted by the driver assistant. The system is not active, but still records important environmental information during this phase.

In the highly automatic driving mode AF, the driver follows ancillary activities and has no complete knowledge of his surroundings. Furthermore, according to the manual driving phase, data is collected and maintained.

In the acquisition phase ÜP, the collected data are sorted and prepared according to their relevance, such as risk, time and / or removal of the event. The display is made via the headup display.

Shown in 4 are also the possible transitions between the above states. Starting from a manual driving state MF, it is determined in an activation query AK whether a highly automatic driving state AF is possible or not. This activation query AK can be initiated by the driver, for example. If the external circumstances do not permit a highly automatic driving state AF, then the activation query AK is rejected and the procedure returns to the manual driving state MF via the branch N, which in other words means that the manual driving state MF is not left.

If it is possible to activate the highly automatic driving state AF, then the method transitions via branch J into the highly automatic driving state AF. From the highly automatic driving state AF, the driver can change over to the manual driving state MF at any time via a manual takeover MÜ of the driving responsibility. If the external conditions suggest a cancellation of the highly automatic driving state AF, an abort query AB checks whether a termination of the highly automatic driving state AF is necessary or not. If the check by means of the abort query AB comes to the conclusion that no abort is necessary, then the method remains over the branch N in the highly automatic driving state AF. However, if a demolition is necessary, the system goes over the branch J in the above-mentioned acquisition phase ÜP, in which the driver with the support of the headup display the necessary information is transmitted to subsequently switch to the manual driving state MF.

LIST OF REFERENCE NUMBERS

1

Stop band display

2

Stop band display

3

Speed limits display

4

Speed limits display

5

gantry

6

roadway

7

lane

8th

lane

9

lane

10

lane

11

stopband

12

stopband

13

steering wheel

14

warning

15

road topology

16

time display

17

speedometer

18

jam indication

19

End Indicator

20

lane

21

display

22

Combined display

23

steering wheel

MF

Manual driving

AK

activation query

AF

Automatic driving

FROM

demolition query

MT

Manual takeover

ÜP

over phase

J

Yes

N

No

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

• DE 102011006347 A1 [0003]
• DE 102011121948 A1 [0004]
• DE 102008061649 A1 [0005]
• DE 102013002533 A1 [0006]

Claims (11)

 Method for displaying information relevant to a driver of a vehicle about a current traffic situation by outputting graphic driving instructions to assist a driver in carrying out a driving maneuver, characterized by the following steps: Detection of information relevant to the driver in transitioning from a phase of a high automatic driving mode (AF) to a phase of a manual driving mode (MF) during the phase of the high automatic driving mode (AF); Storing the relevant information as currently valid information after the transition; and Display of the stored relevant information as currently valid information after a transition from the highly automatic driving mode (AF) to the manual driving mode (MF). A method according to claim 1, characterized in that the information relevant to the driver in the transition from a highly automatic driving mode (AF) to a manual driving mode (MF) comprises at least one or more of the following information: static and dynamic restricted areas, information on lane-related speed limits, Information on lane closures, information on overtaking prohibitions, information on temporary trafficability of hard shoulder. A method according to claim 1 or 2, characterized in that the information relevant to the driver according to their relevance, in particular accident risk and time or distance of a collision event sorted. Method according to one of the preceding claims, characterized in that the driver-relevant information is displayed at the request of the driver or upon acceptance from a highly automatic driving mode for a predetermined period of time after the takeover. Method according to one of the preceding claims, characterized in that a warning is issued when the driver violates the displayed information, wherein the warning is preferably issued by the fact that the information is displayed again. Method according to one of the preceding claims, characterized in that the information relevant to the driver is displayed by means of a contact-analogue head-up display. Method according to one of Claims 1 to 5, characterized in that the information relevant to the driver is displayed by means of augmented reality goggles.  A device for displaying information relevant to a driver of a vehicle about a current traffic situation by outputting graphic driving instructions to assist a driver in carrying out a driving maneuver, characterized by: a sensor system for detecting information that is relevant to the driver in the transition from a phase of a highly automatic driving mode (AF) to a phase of a manual driving mode (MF), during the phase of the highly automatic driving mode (AF); a memory for storing the information as currently valid after the transition; and a display for displaying the currently valid information when the driver takes over the driving task in manual driving mode (MF) after a phase of the highly automatic driving mode (AF).  Apparatus according to claim 8, characterized by a computing unit which is configured to sort and process the information relevant to the driver according to their relevance, in particular accident risk and time or distance of a collision event.  Device according to one of claims 8 or 9, characterized by a contact-analogous head-up display for displaying the information relevant to the driver.  Device according to one of claims 8 or 9, characterized by an augmented reality glasses for displaying the information relevant to the driver.

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