DE202014009304U1 - Driver assistance system - Google Patents

Abstract

Driver assistance system with a localization unit (1) for determining the geographic position of the driver assistance system, an interrogation unit (3) for querying a geographical data pool (2) to predict, based on the geographical position and data received from the data pool (2), if an immissions-intensive stretch is imminent, and, if so, to issue a navigation advice to a stop (11).

Description

The present invention relates to a driver assistance system for protecting the occupants of a vehicle against undesired emissions.

Out DE 196 19 643 C1 is a vehicle with an assistance system is known, which is set to close in the event of passing through a tunnel or the like windows and possibly the sunroof of a vehicle so as to protect the vehicle occupants from exhaust gases and noise in the tunnel. Convertibles have the problem that it is not possible to close the top while driving, because the top or its drive are not designed to withstand the wind in teilgeschlossenem state. In addition, there is the possibility that the lid, which expands during closing, hangs against obstacles, such as branches protruding over the roadway, and thereby takes damage, or the irritation resulting from being caught causes the driver to make mistakes. An automatic closing of the hood when driving into an underground car park can cause the top to catch on a passage and be destroyed.

An object of the present invention is to provide a driver assistance system which also offers the occupants of a convertible effective protection against undesired emissions.

The object is achieved according to an embodiment of the invention by a driver assistance system having a localization unit for determining the geographical position of the driver assistance system or of a vehicle in which it is installed, an interrogation unit for querying a geographical data pool, based on the geographical position and off To predict the data received data pool, whether an immissions-intensive section is imminent, and, if so, to issue a navigation advice to a stop. This gives the driver of the Cabriolet a safe opportunity to stop and close the soft top before reaching the emission-intensive section.

At least one tunnel and / or construction site can be assessed as the immission-intensive section.

In order not to bother the driver with unnecessarily frequent stopping instructions, the driver assistance system should judge a tunnel and / or a construction site only when exceeding a predetermined length as an emission-intensive section.

How long a tunnel or construction site must be at least to trigger the output of the navigation hint may be adjustable by a user.

In order to ensure that the driver always receives a navigation instruction in good time, the interrogation unit can be set up to determine a stop location reached next along a planned route and to examine a section of the route extending beyond the stop station for the presence of an emission-intensive route segment. In this way, it can be ensured that, when such a track is found, said next reached stopping place is suitable to stop there and to close the roof in preparation for the immission-intensive stretch.

The examined stretch can expediently end at the respectively reached as the next stop.

The interrogation unit may further be coupled to a control or a position sensor of the top to detect whether the top is open or closed, and to issue the indication of a stopping place only with the top down.

Conversely, when the top is closed, the interrogation unit can issue an indication of a stopping place if there is no immission-intensive route between it and a stopping point subsequently reached. This is particularly useful if the fact that the top has previously been open and possibly closed as a result of an indication of the interrogation unit, can conclude on suitable for driving with the top down weather.

In particular, the data pool may include map data of a vehicle navigation system, which usually also includes the localization unit.

The data pool may also include data stored in neighboring vehicles; In this case, the interrogation unit may be connected to a communication interface for radio communication with the neighboring vehicles.

In addition, the query unit may be configured to query meteorological data and output the navigation hint when the meteorological data indicates imminent rainfall.

The invention further relates to a computer program product with program code means which enable a computer to work as a query unit in a driver assistance system as described above, as well as a computer-readable A disk that holds program logs that enable the computer to work in this manner.

Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:

1 a block diagram of a driver assistance system according to the invention; and

2 an application situation of the assistance system.

This in 1 Driver assistance system shown as a block diagram comprises a localization unit 1 for determining the geographical position of the driver assistance system or of a vehicle in which it is installed based on a satellite signal, such as a GPS signal, a map database 2 , a query unit 3 as well as a screen 4 , The localization unit 1 , database 2 and the screen 4 can be components of a largely conventional vehicle navigation system 5 be; the query unit 3 can by the microcomputer of such a car navigation system 5 , combined with a fiction-specific utility executable on this microcomputer. The query unit 3 is also with a radio interface 6 connected, which may be designed for communication between vehicles, Internet communication, etc.; Furthermore, the query unit 3 with various sensors 7 the vehicle in order to query various operating parameters of the vehicle such as the position of the hood, the operating state of a ventilation, the position of the windows, etc. and possibly other vehicles on request via the radio interface 7 tell.

2 shows a convertible 8th that on a street 9 Is on the way. The route of the convertible 8th is in a conventional manner by the vehicle navigation system 5 planned, and their course, represented by a dash-dotted curve 10 , is the query unit 3 known.

Already before the in 2 displayed time has the query unit 3 based on the data of the database 2 the course of the road 9 along the route 10 examined while keeping a stop 11 at the edge of the street 9 found. Starting from this stop 9 examines the query unit 3 the further course of the route 10 and gets from the database 2 an indication of a tunnel 12 , If the sensor 7 reports that the hood of the convertible 8th is open, then generates the query unit 3 on the display screen 4 an indication of the tunnel ahead 12 , possibly also on its distance from the convertible 8th , and on the location of the stopping place 11 , here on the right side of the streets 9 , as well as the distance of the vehicle 8th from the stop 11 , Conveniently, an acoustic signal generator and / or means for the voice output may be provided to the driver an indication of the tunnel 12 to deliver. A spoken hint can also give immediate information about the stopping place 11 include; but a simple audible warning signal is enough to get the driver on the screen 4 to look and to take note of the information displayed there.

The query unit 3 takes in the example situation the 2 from the data of the database 2 also an indication of a road underpass 13 but judges its length as insufficient to justify a hint and ignores it. The length that an immission-intensive section of the route must have in order to be informed by the interrogation unit 3 can be set by a user at will.

The investigation of the route 10 through the query unit 3 ends at another stop 14 beyond the tunnel 12 , If beyond the stopping place 14 another tunnel 15 , a construction site or any other emission-intensive section should lie, which could make a closing of the top meaningful, then this needs to in 2 not yet considered, ie the investigation is limited at this time to a section of the route 16 between the stops 11 . 14 ,

After the vehicle 8th the stopping place 9 has happened, the query unit begins 3 , a section 17 the route 10 , from the stopping place 14 up to a next following, not shown in the figure stop place to investigate.

The results of this investigation will be relevant as soon as the vehicle 8th the tunnel 12 happened. If beyond the tunnel 12 no more emission-intensive route sections are imminent, the query unit 3 an indication of the stopping place 14 to alert the driver that the soft top can be reopened there easily. This would happen, for example, if the tunnel 15 short enough to be neglected. However, if it is long enough to be considered, then the top should remain better closed, and thus the query unit points 3 not on the existence of the stopping place 12 out.

Complementary to the data of the database 2 can provide up-to-date information on immission-intensive sections of the route 10 preceding vehicles via the radio interface 6 be obtained. If messages can be received from a relevant proportion of the vehicles in front that indicate that these windows have been closed or a ventilation has been switched over to circulation, then this indicates that an emission-intensive section is ahead and justifies the issuing of an indication of one Holding place by the query unit 3 ,

The radio interface 6 In particular, it can also be used to move from the route 10 reference vehicles to precipitation and, if such information is received, an indication of the nearest stop on the screen 4 , possibly also combined with acoustic information output.

It should be understood that the foregoing detailed description and drawings, while indicating certain exemplary embodiments of the invention, are intended for purposes of illustration only and are not to be construed as limiting the scope of the invention. Various modifications of the described embodiments are possible without departing from the scope of the following claims and their equivalence range. In particular, this description and the figures also show features of the embodiments which are not mentioned in the claims. Such features may also occur in combinations other than those specifically disclosed herein. Therefore, the fact that several such features are mentioned in the same sentence or in a different type of textual context does not justify the conclusion that they can occur only in the specific combination disclosed; instead, it is generally to be assumed that it is also possible to omit or modify individual ones of several such features, provided this does not call into question the functionality of the invention.

LIST OF REFERENCE NUMBERS

1

localization unit

2

Map database

3

interrogation unit

4

screen

5

Car navigation system

6

Radio interface

7

sensor

8th

Cabriolet

9

Street

10

route

11

stopping place

12

tunnel

13

Underpass

14

stopping place

15

tunnel

16

stretch

17

stretch

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 19619643 C1 [0002]

Claims (12)

Driver assistance system with a localization unit ( 1 ) for determining the geographical position of the driver assistance system, an interrogation unit ( 3 ) for querying a geographic data pool ( 2 ) based on the geographical position and from the data pool ( 2 ) to predict whether an immissions-intensive stretch of track is imminent, and, if so, a navigation hint to a stop ( 11 ). Driver assistance system according to claim 1, which as an immission-intensive stretch at least one tunnel ( 12 ) and / or a construction site. Driver assistance system according to claim 2, having a tunnel ( 12 ) and / or a construction site only when exceeding a predetermined length as an emission-intensive stretch judged. Driver assistance system according to one of the preceding claims, in which the interrogation unit ( 3 ) along a planned route ( 10 ) each have a next reached stop ( 11 ) and one beyond the stopping place ( 11 ) extending section ( 16 ) of the route ( 10 ) to investigate the presence of an emission-intensive section. Driver assistance system according to claim 4, in which the examined section ( 16 ) in each case up to a stop-over point ( 14 ) enough. Driver assistance system according to one of the preceding claims, in which the interrogation unit ( 3 ) to a controller or a position sensor ( 7 ) is coupled to detect whether the top is open or closed, and the reference to a stop ( 11 ) only when the roof is open. Driver assistance system according to Claim 6, in which the interrogation unit ( 3 ) is set up, with the roof down, an indication of a stopping place ( 14 ), if there is no immission-intensive route between this and a subsequently reached stop. Driver assistance system according to one of the preceding claims, in which the data pool ( 2 ) Map data of a vehicle navigation system ( 5 ). Driver assistance system according to one of the preceding claims, in which the data pool comprises data stored in adjacent vehicles and the interrogation unit ( 3 ) with a communication interface ( 6 ) is connected for radio communication with the neighboring vehicles. Driver assistance system according to one of the preceding claims, in which the interrogation unit ( 3 ) is further configured to interrogate meteorological data and to output the navigation indication when the meteorological data indicate impending precipitation. A computer program product having program code means for enabling a computer to operate as a query unit in a driver assistance system according to any one of claims 1 to 9. A computer-readable medium recorded with program instructions that enable a computer to operate as a query unit in a driver assistance system according to any one of claims 1 to 9.

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