DE102011008881A1 - Method for detecting preceding motor car from own motor vehicle, involves detecting signals of tire pressure sensors, and determining whether detected signals are produced by external vehicle based on external identifier - Google Patents
Method for detecting preceding motor car from own motor vehicle, involves detecting signals of tire pressure sensors, and determining whether detected signals are produced by external vehicle based on external identifier Download PDFInfo
- Publication number
- DE102011008881A1 DE102011008881A1 DE102011008881A DE102011008881A DE102011008881A1 DE 102011008881 A1 DE102011008881 A1 DE 102011008881A1 DE 102011008881 A DE102011008881 A DE 102011008881A DE 102011008881 A DE102011008881 A DE 102011008881A DE 102011008881 A1 DE102011008881 A1 DE 102011008881A1
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- Prior art keywords
- tire pressure
- vehicle
- signals
- pressure sensors
- evaluation unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
- B60C23/0437—Means for detecting electromagnetic field changes not being part of the signal transmission per se, e.g. strength, direction, propagation or masking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0422—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver characterised by the type of signal transmission means
- B60C23/0433—Radio signals
- B60C23/0435—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender
- B60C23/0438—Vehicle body mounted circuits, e.g. transceiver or antenna fixed to central console, door, roof, mirror or fender comprising signal transmission means, e.g. for a bidirectional communication with a corresponding wheel mounted receiver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/20—Tyre data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2556/00—Input parameters relating to data
- B60W2556/45—External transmission of data to or from the vehicle
- B60W2556/65—Data transmitted between vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Erfassung eines vorausfahrenden Kraftfahrzeuges.The invention relates to a method and a device for detecting a vehicle in front.
In modernen Kraftfahrzeugen kommen verstärkt Fahrassistenzsysteme zum Einsatz. Beispiele für solche Fahrassistenzsysteme sind z. B. automatische Distanzregelungen (ADR). Dabei wird beispielsweise mittels Radarsensoren ein vorausfahrendes Kraftfahrzeug erfasst und der Abstand und die Relativgeschwindigkeit ermittelt. Sinkt der ermittelte Abstand unter einen Soll-Abstand, kann durch automatische Eingriffe in die Fahrdynamik der Abstand wieder vergrößert oder der Kraftfahrzeugführer gewarnt werden. Aufgrund der damit verbundenen Kosten werden solche Fahrerassistenzsysteme jedoch nicht in allen Fahrzeugen serienmäßig eingebaut.In modern motor vehicles, driver assistance systems are increasingly being used. Examples of such driver assistance systems are z. B. automatic distance control (ADR). In this case, for example by means of radar sensors, a preceding motor vehicle is detected and determines the distance and the relative speed. If the determined distance drops below a desired distance, the distance can be increased again by automatic intervention in the driving dynamics or the motor vehicle driver can be warned. Due to the associated costs, however, such driver assistance systems are not installed as standard in all vehicles.
Aus der
Der Erfindung liegt das technische Problem zugrunde, ein Verfahren und eine Vorrichtung zur Erfassung eines vorausfahrenden Kraftfahrzeuges zu schaffen, die einfach und kostengünstig realisiert werden können.The invention is based on the technical problem of providing a method and a device for detecting a preceding motor vehicle, which can be realized simply and inexpensively.
Die Lösung des technischen Problems ergibt sich durch die Gegenstände mit den Merkmalen der Ansprüche 1 und 7. Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.The solution of the technical problem results from the objects with the features of
Hierzu sieht das Verfahren zur Erfassung eines vorausfahrenden Fahrzeugs mittels mindestens einer Empfangsantenne und einer Auswerteeinheit vor, dass mittels der mindestens einen Empfangsantenne Signale von Reifendrucksensoren erfasst werden, wobei die Auswerteeinheit anhand einer Kennung ermittelt, ob die erfassten Signale von einem fremden Fahrzeug stammen. Werden Signale von fremden Fahrzeugen erfasst, so kann aufgrund der begrenzten Reichweite der Reifendrucksensoren auf ein fremdes Fahrzeug im Umfeld geschlossen werden.For this purpose, the method for detecting a vehicle in front by means of at least one receiving antenna and an evaluation before that signals from tire pressure sensors are detected by the at least one receiving antenna, wherein the evaluation determines based on an identifier whether the detected signals originate from a foreign vehicle. If signals from other vehicles are detected, due to the limited range of the tire pressure sensors can be closed to a foreign vehicle in the environment.
In einer Ausführungsform klassifiziert die Auswerteeinheit das erfasste fremde Fahrzeug als vorausfahrendes Fahrzeug, wenn die gleiche fremde Kennung mindestens n-mal nacheinander erfasst wird. Hierdurch wird sichergestellt, dass nur kurzfristig das eigene Fahrzeug kreuzende Fahrzeuge nicht als vorausfahrende Fahrzeuge klassifiziert werden. Dabei kann n ≥ 2 gewählt werden, wobei vorzugsweise gilt 5 ≥ n ≥ 10.In one embodiment, the evaluation unit classifies the detected foreign vehicle as the preceding vehicle if the same foreign identifier is detected at least n times in succession. This ensures that only short-term crossing the own vehicle crossing vehicles are not classified as leading vehicles. In this case, n ≥ 2 can be selected, preferably 5 ≥ n ≥ 10.
In einer weiteren Ausführungsform ist die Empfangsantenne in Fahrtrichtung ausgerichtet bzw. weist eine in Fahrtrichtung ausgerichtete Empfangscharakteristik auf. Hierdurch kann wirkungsvoll verhindert werden, dass neben oder hinter dem eigenen Fahrzeug fahrende Kraftfahrzeuge als vorausfahrende Fahrzeuge klassifiziert werden. Dabei sei aber angemerkt, dass es auch möglich ist, dicht hinter dem eigenen Fahrzeug fahrende Fahrzeuge zu erfassen und beispielsweise durch Aufleuchten der Bremsleuchten auf einen geringen Sicherheitsabstand hinzuweisen. In diesem Fall existiert eine Empfangscharakteristik zur rückwärtigen Fahrbahn. Die Empfangscharakteristik kann auch abweichend von der exakten Fahrtrichtung gewählt werden, beispielsweise zu einer Seite versetzt. Dies kann sinnvoll sein, wenn dort die Empfangsituation für die Signale der Reifendrucksensoren der vorausfahrenden Fahrzeuge besser ist. Beispielsweise kann hierzu die Empfangscharakteristik der Antenne einstellbar ausgebildet sein.In a further embodiment, the receiving antenna is aligned in the direction of travel or has a receiving characteristic oriented in the direction of travel. As a result, it can be effectively prevented that motor vehicles traveling next to or behind the own vehicle are classified as preceding vehicles. It should be noted, however, that it is also possible to detect behind the own vehicle driving vehicles and to point out, for example by lighting the brake lights on a small safety margin. In this case, there is a receiving characteristic to the rear lane. The reception characteristic can also be chosen differently from the exact direction of travel, for example offset to one side. This can be useful if there the reception situation for the signals of the tire pressure sensors of the preceding vehicles is better. For example, the receiving characteristic of the antenna can be designed to be adjustable for this purpose.
In einer weiteren Ausführungsform wird das Signal-Rausch-Verhältnis SNR (signal noise ratio) der empfangenen Signale ausgewertet, wobei aus dem Signal-Rausch-Verhältnis der Abstand zum vorausfahrenden Fahrzeug ermittelt oder geschätzt wird.In a further embodiment, the signal-to-noise ratio SNR of the received signals is evaluated, wherein the distance to the vehicle in front is determined or estimated from the signal-to-noise ratio.
In einer weiteren Ausführungsform wird zusätzlich die Eigengeschwindigkeit des Kraftfahrzeuges berücksichtigt. Dabei kann beispielsweise anhand der Eigengeschwindigkeit ein Soll-Abstand oder eine Soll-Folgezeit ermittelt werden, die dann mit dem ermittelten Abstand verglichen werden kann. Des Weiteren ist es denkbar, anhand der ermittelten Empfangsfrequenz unter Berücksichtigung der Doppler-Verschiebung eine Relativgeschwindigkeit zu ermitteln.In a further embodiment, the intrinsic speed of the motor vehicle is additionally taken into account. In this case, for example, based on the airspeed, a desired distance or a desired follow-up time can be determined, which can then be compared with the determined distance. Furthermore, it is conceivable to determine a relative speed based on the determined reception frequency taking into account the Doppler shift.
In einer weiteren Ausführungsform werden mittels einer Sendeeinheit die Reifendrucksensoren eines vermeintlich vorausfahrenden Fahrzeugs zum Senden angeregt bzw. angetriggert. Hierdurch wird insbesondere sichergestellt, dass bei einer standardmäßig geringen Messwiederholfrequenz der Reifendrucksensoren zeitnah ausreichend Messwerte zur Verfügung gestellt werden, um so die Klassifizierung als vorausfahrendes Fahrzeug und/oder die Bestimmung des Abstandes zu verbessern oder überhaupt zu ermöglichen.In a further embodiment, the tire pressure sensors of a supposedly preceding vehicle are stimulated or triggered for transmission by means of a transmission unit. In this way, it is ensured, in particular, that with a standard low measurement repetition frequency of the tire pressure sensors, sufficient measured values are made available in a timely manner so as to improve the classification as a vehicle in front and / or to determine the distance or even permit it.
Wird ein vorausfahrendes Fahrzeug ermittelt, so wird der Kraftfahrzeugführer visuell und/oder akustisch gewarnt. Weiter kann auch vorgesehen sein, dass aktive Eingriffe in die Fahrdynamik erfolgen. If a vehicle in front is detected, the driver of the motor vehicle is visually and / or acoustically warned. It can also be provided that active interventions in the driving dynamics take place.
Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels näher erläutert. Die Fig. zeigen:The invention will be explained in more detail below with reference to a preferred embodiment. The figures show:
In der
Die Auswerteeinheit
Die zweite Funktion der Auswerteeinheit
Ein möglicher Ablauf des Verfahrens ist in
Dabei sei angemerkt, dass die Empfangseinheiten
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.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.
Zitierte PatentliteraturCited patent literature
- DE 102009009627 A1 [0003] DE 102009009627 A1 [0003]
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011008881.4A DE102011008881B4 (en) | 2011-01-19 | 2011-01-19 | Method and device for detecting a preceding motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011008881.4A DE102011008881B4 (en) | 2011-01-19 | 2011-01-19 | Method and device for detecting a preceding motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102011008881A1 true DE102011008881A1 (en) | 2012-07-19 |
| DE102011008881B4 DE102011008881B4 (en) | 2014-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102011008881.4A Expired - Fee Related DE102011008881B4 (en) | 2011-01-19 | 2011-01-19 | Method and device for detecting a preceding motor vehicle |
Country Status (1)
| Country | Link |
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| DE (1) | DE102011008881B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3002492A1 (en) * | 2013-02-28 | 2014-08-29 | Continental Automotive France | SELF-ADAPTIVE METHOD OF ASSISTING INFLATION OF TIRES |
| DE102016110001A1 (en) * | 2016-05-31 | 2017-11-30 | Paul Vahle Gmbh & Co. Kg | Data transmission and position measuring system for vehicles |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6941803B2 (en) * | 2003-01-22 | 2005-09-13 | Nissan Motor Co., Ltd. | Tire pressure monitoring apparatus and process |
| EP1702769A2 (en) * | 2005-03-18 | 2006-09-20 | Infineon Technologies AG | Tire monitoring system with intelligent transmission timing |
| US20080216567A1 (en) * | 2000-09-08 | 2008-09-11 | Automotive Technologies International, Inc. | Tire Monitoring System |
| DE102009009627A1 (en) | 2008-02-22 | 2009-10-29 | GM Global Technology Operations, Inc., Detroit | Automatic location of wireless tire pressure monitoring sensors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010008306A1 (en) * | 2010-02-17 | 2011-08-18 | Continental Automotive GmbH, 30165 | Method and system for determining environmental information of a vehicle |
-
2011
- 2011-01-19 DE DE102011008881.4A patent/DE102011008881B4/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080216567A1 (en) * | 2000-09-08 | 2008-09-11 | Automotive Technologies International, Inc. | Tire Monitoring System |
| US6941803B2 (en) * | 2003-01-22 | 2005-09-13 | Nissan Motor Co., Ltd. | Tire pressure monitoring apparatus and process |
| EP1702769A2 (en) * | 2005-03-18 | 2006-09-20 | Infineon Technologies AG | Tire monitoring system with intelligent transmission timing |
| DE102009009627A1 (en) | 2008-02-22 | 2009-10-29 | GM Global Technology Operations, Inc., Detroit | Automatic location of wireless tire pressure monitoring sensors |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3002492A1 (en) * | 2013-02-28 | 2014-08-29 | Continental Automotive France | SELF-ADAPTIVE METHOD OF ASSISTING INFLATION OF TIRES |
| WO2014131509A1 (en) * | 2013-02-28 | 2014-09-04 | Continental Automotive France | Self-adaptive method for assisting tire inflation |
| US9783009B2 (en) | 2013-02-28 | 2017-10-10 | Continental Automotive France | Self-adaptive method for assisting tire inflation |
| DE102016110001A1 (en) * | 2016-05-31 | 2017-11-30 | Paul Vahle Gmbh & Co. Kg | Data transmission and position measuring system for vehicles |
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| Publication number | Publication date |
|---|---|
| DE102011008881B4 (en) | 2014-09-25 |
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