DE102013014446A1 - Collision warning device - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
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- Engineering & Computer Science (AREA)
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Abstract
Eine Kollisionswarnvorrichtung für ein Kraftfahrzeug umfasst wenigstens einen Sensor (7) zum Erfassen eines von dem Kraftfahrzeug (12) in Fahrtrichtung beabstandeten Objekts, eine Anzeigeeinrichtung (4) mit mehreren in Breitenrichtung des Kraftfahrzeugs (12) verteilten Lichtquellen (3) und eine Auswerteeinheit (9) zum Ansteuern der Anzeigeeinrichtung (4). Die Auswerteeinheit (9) ist ferner an eine Einrichtung (8; 10) zum Erfassen von Objekten (13; 17) in in Fahrzeugquerrichtung beabstandeten Überwachungsbereichen (14; 18r) gekoppelt und eingerichtet, bei Erfassung eines Objekts (13; 17) in einem der Erfassungsbereiche (14; 18r) die Anzeigeeinrichtung (4) mit einer asymmetrischen Lichtverteilung anzusteuern.A collision warning device for a motor vehicle comprises at least one sensor (7) for detecting an object spaced from the motor vehicle (12) in the direction of travel, a display device (4) with a plurality of light sources (3) distributed in the width direction of the motor vehicle (12) and an evaluation unit (9 ) for driving the display device (4). The evaluation unit (9) is further coupled to a device (8; 10) for detecting objects (13; 17) in vehicle transverse direction spaced monitoring areas (14; 18r) and arranged upon detection of an object (13; 17) in one of Detection areas (14; 18r) to drive the display device (4) with an asymmetric light distribution.
Description
Die vorliegende Erfindung betrifft eine Kollisionswarnvorrichtung für ein Kraftfahrzeug.The present invention relates to a collision warning device for a motor vehicle.
Kollisionswarnvorrichtungen sind in einer Vielzahl von Typen mit unterschiedlichen Leistungsmerkmalen in Gebrauch. So sind zum Beispiel Warnvorrichtungen verbreitet, die den Abstand zu einem vorausfahrenden Fahrzeug messen, ihn mit der Geschwindigkeit eines Ego-Fahrzeugs, d. h. des Fahrzeugs, in dem die Warnvorrichtung eingebaut ist, in Beziehung setzen und daraus ein Warnsignal ableiten, das von einer Anzeigeeinrichtung am Armaturenbrett angezeigt wird. Andere Kollisionswarnvorrichtungen überwachen beispielsweise Totwinkelbereiche rechts und links von einem Ego-Fahrzeug und verfügen über Anzeigeeinrichtungen an rechter und linker Fahrzeugseite, um ein Warnsignal anzuzeigen, wenn auf der betreffenden Fahrzeugseite ein Objekt erfasst wird.Collision warning devices are used in a variety of types with different performance characteristics. For example, warning devices that measure the distance to a vehicle in front are common at the speed of an ego vehicle; H. the vehicle in which the warning device is installed, and deduce therefrom a warning signal that is displayed by a display device on the dashboard. Other collision warning devices, for example, monitor blind spot areas to the right and left of an ego vehicle and have right and left vehicle side indicators to indicate a warning signal when an object is detected on the vehicle side concerned.
Bei der Produktion von Kraftfahrzeugen machen die diversen Typen von Kollisionswarnvorrichtungen, insbesondere ihre unterschiedlichen und an verschiedenen Stellen im Fahrzeug platzierten Sensoren und Anzeigeeinrichtungen, einen hohen logistischen Aufwand erforderlich. Die damit verbundenen Kosten halten zahlreiche Autokäufer davon ab, solche Warnvorrichtungen einbauen zu lassen, und veranlassen sie so, auf Sicherheit für sich und andere Verkehrsteilnehmer zu verzichten. Es besteht daher hoher Bedarf nach Wegen, die Kosten für den Einbau solcher Warnvorrichtungen in Kraftfahrzeugen zu reduzieren.In the production of motor vehicles, the various types of collision warning devices, in particular their different sensors and display devices placed at various points in the vehicle, require a high logistical effort. The associated costs prevent many car buyers from having such warning devices installed, thus causing them to forego safety for themselves and other road users. There is therefore a great need for ways to reduce the cost of installing such warning devices in motor vehicles.
Dieses Ziel wird einer Ausgestaltung der Erfindung zufolge erreicht, indem bei einer Kollisionswarnvorrichtung für ein Kraftfahrzeug mit wenigstens einem Sensor zum Erfassen eines von dem Kraftfahrzeug in Fahrtrichtung beabstandeten Objekts, einer Anzeigeeinrichtung, die mehrere in Breitenrichtung des Kraftfahrzeugs verteilte Lichtquellen umfasst, einer Auswerteeinheit zum Steuern der Anzeigeeinrichtung mit einer symmetrischen Lichtverteilung in Abhängigkeit von Signalen des Sensors die Auswerteeinheit ferner an eine Einrichtung zum Erfassen von Objekten in in Fahrzeugquerrichtung beabstandeten Überwachungsbereichen gekoppelt ist und eingerichtet ist, bei Erfassung eines Objekts in einem dieser seitlichen Überwachungsbereiche die Anzeigeeinrichtung mit einer asymmetrischen Lichtverteilung anzusteuern. Indem auf diese Weise die Anzeigeeinrichtung mehrfach genutzt wird, entfällt die Notwendigkeit, eine weitere Anzeigevorrichtung für die Überwachungsergebnisse der seitlichen Überwachungsbereiche vorzusehen. Da gleichzeitig die Asymmetrie der Lichtverteilung einen Rückschluss darauf erlaubt, in welchem der verschiedenen Überwachungsbereiche ein Objekt erfasst wurde, kann der Fahrer, obwohl nur eine einzige Anzeigeeinrichtung vorgesehen ist, sofort zwischen einer Warnung vor einem in Fahrtrichtung vorausliegenden Objekt bzw. einem Objekt in einem der seitlichen Überwachungsbereiche unterscheiden.This object is achieved according to an embodiment of the invention, in a collision warning device for a motor vehicle with at least one sensor for detecting an object spaced from the motor vehicle in the direction of travel, a display device which comprises a plurality of light sources distributed in the width direction of the motor vehicle, an evaluation unit for controlling the Display device with a symmetrical light distribution in response to signals from the sensor, the evaluation unit is further coupled to a device for detecting objects in spaced in the vehicle transverse direction monitoring areas and is adapted to control the display device with an asymmetric light distribution upon detection of an object in one of these lateral monitoring areas. By multiple use of the display device in this way, there is no need to provide another display device for the monitoring results of the lateral monitoring areas. Since at the same time the asymmetry of the light distribution allows a conclusion as to which of the various monitoring areas an object was detected, the driver, although only a single display device is provided immediately between a warning ahead of an object ahead in the direction of travel or an object in one of differentiate between lateral monitoring areas.
Die symmetrische Lichtverteilung kann einen Betrieb aller Lichtquellen der Anzeigeeinrichtung mit gleicher Intensität beinhalten. So wird im Falle eines vorausliegenden Objekts ein großflächig verteiltes und deutlich sichtbares Warnsignal erhalten.The symmetrical light distribution may include an operation of all light sources of the display device with the same intensity. Thus, in the case of a preceding object, a widely distributed and clearly visible warning signal is obtained.
Die asymmetrische Lichtverteilung kann eine Aufteilung der Lichtquellen auf zwei Gruppen rechts und links einer Grenze und einen Betrieb der beiden Gruppen mit jeweils unterschiedlichen Intensitäten beinhalten. So ermöglicht die Schwerpunktlage der Lichtverteilung einen Rückschluss auf denjenigen seitlichen Erfassungsbereich, in dem sich ein erfasstes Objekt befindet.The asymmetrical light distribution can include a division of the light sources into two groups on the right and left of a boundary and an operation of the two groups with different intensities. Thus, the center of gravity of the light distribution allows a conclusion on that lateral detection area in which a detected object is located.
Um einen deutlich erkennbaren Hinweis auf die Seite des Fahrzeugs zu liefern, in der sich das erfasste Objekt befindet, kann vorgesehen sein, dass die Intensität nur derjenigen Gruppe von Lichtquellen von Null verschieden ist, die sich auf der Seite des erfassten Objekts befindet.In order to provide a clearly recognizable indication of the side of the vehicle in which the detected object is located, it may be provided that the intensity is different only from that group of light sources of zero located on the side of the detected object.
Die Auswerteeinheit kann eingerichtet sein, die Bedeutung eines in einem der Überwachungsbereiche erfassten Objekts für das Ego-Fahrzeug zu beurteilen. Die Grenze zwischen den beiden Gruppen von Lichtquellen kann dann umso weiter von dem Überwachungsbereich entfernt platziert sein, je höher die Bedeutung ist. So ist die Gruppe der Lichtquellen auf der Seite des erfassten Objekts umso größer und das von ihr erzeugte Warnsignal umso auffälliger, je bedeutsamer das Objekt eingeschätzt worden ist.The evaluation unit can be set up to assess the significance of an object detected in one of the monitoring areas for the ego vehicle. The higher the significance, the further the boundary between the two groups of light sources can be placed the further away from the monitoring area. Thus, the group of light sources on the side of the detected object is greater and the warning signal generated by it becomes more conspicuous, the more significant the object has been estimated.
Wenn die Bedeutung des erfassten Objekts als maximal beurteilt wird, das heißt den höchsten Bedeutungsgrad erreicht hat, den die Kollisionswarnvorrichtung verarbeiten kann, dann kann die Grenze zwischen den Gruppen so weit verschoben sein, dass sämtliche Lichtquellen der Anzeigeeinrichtung zu der auf Seiten des erfassten Objekts liegenden Gruppe gehören. In einem solchen Fall kann und soll die Lichtverteilung der Anzeigevorrichtung wieder symmetrisch sein, denn während auf einer niedrigen Bedeutungsstufe ausreichend sein kann, dass der Fahrer das erfasste Objekt zur Kenntnis nimmt und bereit ist, notfalls zu bremsen oder auszuweichen, ist bei hoher Bedeutung eines sich von der Seite nähernden Objekts im Allgemeinen dieselbe Fahrerreaktion zweckmäßig wie bei Annäherung eines Objekts von vorne, nämlich scharfes Bremsen. Wenn aber in zwei verschiedenen Gefahrensituationen eine gleiche Fahrerreaktion erwünscht ist, dann ist es zweckmäßig, wenn der Fahrer in beiden Situationen dasselbe Warnsignal oder zumindest einander stark ähnelnde Warnsignale angezeigt bekommt.If the meaning of the detected object is judged to be maximum, that is to say has reached the highest degree of significance which the collision warning device can process, then the boundary between the groups can be shifted so far that all the light sources of the display device are located on the side of the detected object Belong to group. In such a case, the light distribution of the display device can and should again be symmetrical, because while it may be sufficient at a low level of meaning that the driver takes note of the detected object and is ready to brake or avoid it if necessary The object approaching from the side generally has the same driver response as when approaching an object from the front, namely, sharp braking. But if in two different dangerous situations a same driver reaction is desired, then it is expedient if the driver in both situations the same warning signal or at least closely resembling warning signals gets displayed.
In analoger Weise kommt auch in Betracht, dass die Auswerteeinheit die Entfernung eines in einem der Überwachungsbereiche erfassten Objekts beurteilt und die Grenze zwischen den Gruppen von Lichtquellen um so weiter von dem Überwachungsbereich entfernt platziert, je näher das Objekt ist.In an analogous manner, it is also contemplated that the evaluation unit judges the distance of an object detected in one of the surveillance areas and places the boundary between the groups of light sources farther from the surveillance area the closer the object is.
Auch hier kann bei starker Annäherung des erfassten Objekts an das Fahrzeug die Grenze so weit verschoben werden, dass alle Lichtquellen der Anzeigeeinrichtung zur gleichen Gruppe gehören und somit die symmetrische Lichtverteilung erzeugt wird.Here as well, when the detected object approaches the vehicle sharply, the limit can be shifted so far that all light sources of the display device belong to the same group and thus the symmetrical light distribution is generated.
Die seitlichen Überwachungsbereiche können Totwinkelbereiche sein, die für den Fahrer über Rückspiegel schlecht oder gar nicht einsehbar sind.The lateral monitoring areas can be blind spot areas which are poorly or not at all visible to the driver via rearview mirrors.
Einer alternativen Ausgestaltung zufolge können die überwachten Bereiche auch auf den Fahrweg des Ego-Fahrzeugs einmündende Fahrwege sein auf denen sich Fahrzeuge befinden könnten, die, wenn sie in den Fahrweg des Ego-Fahrzeugs eindringen, mit diesem kollidieren könnten.According to an alternative embodiment, the monitored areas may also be on the route of the ego vehicle opening trajectories on which vehicles could be located, which, if they penetrate the path of the ego vehicle, could collide with this.
Insbesondere um solche Fahrzeuge zu erkennen, kann die Einrichtung zum Erfassen von Objekten in den überwachten seitlichen Bereichen eine V2V-Kommunikationsschnittstelle sein, die in der Lage ist, mit einer entsprechenden Schnittstelle eines sich im überwachten Bereich befindenden Fahrzeugs zu kommunizieren.In particular, to detect such vehicles, the means for detecting objects in the monitored lateral areas may be a V2V communication interface capable of communicating with a corresponding interface of a vehicle in the monitored area.
Die Kollisionswarnvorrichtung kann zusätzlich zur durch die oben erwähnten Lichtquellen gebildeten Anzeigeeinrichtung eine weitere Anzeigeeinrichtung umfassen, die genutzt wird, um den Fahrer über Situationen zu informieren, deren Bedeutsamkeit nicht ausreicht, um eine Aktivierung der Lichtquellen zu rechtfertigen. Diese zweite Anzeigeeinrichtung kann insbesondere eine Bildschirm-Anzeigeeinrichtung am Armaturenbrett des Fahrzeugs sein.The collision warning device may comprise, in addition to the display device formed by the above-mentioned light sources, another display device which is used to inform the driver of situations whose significance is insufficient to justify activation of the light sources. This second display device may, in particular, be a screen display device on the dashboard of the vehicle.
Die Aufgabe wird einer anderen Ausgestaltung der Erfindung zufolge gelöst durch ein Verfahren zum Betreiben einer mehrere Lichtquellen umfassenden Anzeigeeinrichtung in einem Kraftfahrzeug mit den Schritten:
- – bei Erfassung eines von dem Kraftfahrzeug in Fahrtrichtung beabstandeten Objekts, Ansteuern der Anzeigeeinrichtung mit einer symmetrischen Lichtverteilung;
- – bei Erfassung eines Objekts in einem von dem Kraftfahrzeug in Fahrzeugquerrichtung beabstandeten Überwachungsbereich, Ansteuern der Anzeigeeinrichtung mit einer asymmetrischen Lichtverteilung.
- - Upon detection of an object spaced from the motor vehicle in the direction of travel object, driving the display device with a symmetrical light distribution;
- - Upon detection of an object in a spaced from the motor vehicle in the vehicle transverse direction monitoring area, driving the display device with an asymmetric light distribution.
Weitere Erfindungsgegenstände sind ein Computerprogrammprodukt, welches Instruktionen umfasst, die bei Ausführung auf einem Computer diesen befähigen, als Auswerteeinheit in einer Kollisionswarnvorrichtung wie oben beschrieben zu arbeiten oder das oben beschriebene Verfahren auszuführen, bzw. ein computerlesbarer Datenträger, auf dem solche Instruktionen aufgezeichnet sind, sowie eine Einrichtung mit Mitteln zum Ansteuern einer mehrere in Breitenrichtung des Kraftfahrzeugs verteilte Lichtquellen umfassenden Anzeigeeinrichtung mit einer symmetrischen Lichtverteilung bei Erfassung eines von dem Kraftfahrzeug in Fahrtrichtung beabstandeten Objekts und Mitteln zum Ansteuern der Anzeigeeinrichtung mit einer asymmetrischen Lichtverteilung bei Erfassung eines Objekts in einem von dem Kraftfahrzeug in Fahrzeugquerrichtung beabstandeten Überwachungsbereich.Further subjects of the invention are a computer program product which comprises instructions which, when executed on a computer, enable it to function as an evaluation unit in a collision warning device as described above or to carry out the method described above, or a computer-readable data carrier on which such instructions are recorded, as well as a device comprising means for driving a display comprising a plurality of light sources distributed in the width direction of the motor vehicle with a symmetrical light distribution upon detection of an object spaced from the motor vehicle in the direction of travel and means for driving the display device with an asymmetric light distribution upon detection of an object in one of the motor vehicle in Vehicle transverse direction spaced monitoring area.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Es zeigen:Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:
Die Lichtquellen
Die Lichtquellen
Die Auswerteeinheit
Wenn der Sensor
Wenn die berechnete Zeit einen zweiten, niedrigeren Grenzwert unterschreitet, kann überdies vorgesehen sein, dass die Anzeigeeinrichtung
Die Lichtquellen
Wenn die Bewegungsprognose durch die Auswerteeinheit
Um den Fahrer nicht mit unnötigen Warnungen zu irritieren, kann vorgesehen werden, dass Warnungen niedriger Dringlichkeit nicht mittels der Anzeigeeinrichtung
Es liegt auf der Hand, dass die Auswerteinheit
Auch hier kann vorgesehen werden, dass die reine Präsenz des Fahrzeugs
Während im Fall einer übermäßigen Annäherung an ein vorausfahrendes Fahrzeug die Lichtquellen
Es versteht sich, dass die obige detaillierte Beschreibung und die Zeichnungen zwar bestimmte exemplarische Ausgestaltungen der Erfindung darstellen, dass sie aber nur zur Veranschaulichung gedacht sind und nicht als den Umfang der Erfindung einschränkend ausgelegt werden sollen. Diverse Abwandlungen der beschriebenen Ausgestaltungen sind möglich, ohne den Rahmen der nachfolgenden Ansprüche und deren Äquivalenzbereich zu verlassen. Insbesondere gehen aus dieser Beschreibung und den Figuren auch Merkmale der Ausführungsbeispiele hervor, die nicht in den Ansprüchen erwähnt sind. Solche Merkmale können auch in anderen als den hier spezifisch offenbarten Kombinationen auftreten. Die Tatsache, dass mehrere solche Merkmale in einem gleichen Satz oder in einer anderen Art von Textzusammenhang miteinander erwähnt sind, rechtfertigt daher nicht den Schluss, dass sie nur in der spezifisch offenbarten Kombination auftreten können; stattdessen ist grundsätzlich davon auszugehen, dass von mehreren solchen Merkmalen auch einzelne weggelassen oder abgewandelt werden können, sofern dies die Funktionsfähigkeit der Erfindung nicht in Frage stellt.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.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Armaturenbrettdashboard
- 22
- WindschutzscheibeWindshield
- 33
- Lichtquellelight source
- 44
- Anzeigeeinrichtungdisplay
- 55
- Lenkradsteering wheel
- 66
- Flächearea
- 77
- Sensorsensor
- 88th
- Sensorsensor
- 99
- Auswerteeinheitevaluation
- 1010
- V2V-KommunikationsschnittstelleV2V communication interface
- 1111
- Navigationsgerätnavigation device
- 1212
- Ego-FahrzeugEgo vehicle
- 1313
- Fahrzeugvehicle
- 1414
- Fahrwegroadway
- 1515
- StraßeStreet
- 1616
- Grenzeborder
- 1717
- Fahrzeugvehicle
- 18l, r18l, r
- Totwinkelbereichblind spot
- 19l, r19l, r
- Gruppegroup
- 2020
- Anzeigeeinrichtungdisplay
Claims (15)
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DE201310014446 DE102013014446A1 (en) | 2013-08-30 | 2013-08-30 | Collision warning device |
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DE201310014446 DE102013014446A1 (en) | 2013-08-30 | 2013-08-30 | Collision warning device |
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