JP2009289289A - Intersection safe traveling support system - Google Patents

Intersection safe traveling support system Download PDF

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JP2009289289A
JP2009289289A JP2009208174A JP2009208174A JP2009289289A JP 2009289289 A JP2009289289 A JP 2009289289A JP 2009208174 A JP2009208174 A JP 2009208174A JP 2009208174 A JP2009208174 A JP 2009208174A JP 2009289289 A JP2009289289 A JP 2009289289A
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vehicle
right turn
lane
intersection
detection means
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Hisashi Ishikura
寿 石倉
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an intersection safe traveling support system for issuing an alarm only in a really dangerous situation and suppressing annoyance of the alarm. <P>SOLUTION: A road side is disposed with: a straight lane situation detection means 1 and a right turn lane situation detection means 2 respectively detecting presence/absence of a vehicle in a straight lane and a right turn lane, and a state of a vehicle entering an intersection; and a road communication means 3 transmitting detected information to each vehicle near the intersection. On a vehicle side, the transmitted information is received by a vehicle communication means 4, behavior of the vehicle is detected by a vehicle behavior detection means 5, and straight travel of the vehicle is decided. When an oncoming right-turn vehicle starts to move, a dangerous situation decision means 6 decides that the vehicle is in the very dangerous situation, and the alarm is issued by a warning means 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

この発明は、交差点での事故を防止し、安全運転を支援する交差点安全走行支援システムに関するものである。   The present invention relates to an intersection safe driving support system that prevents accidents at intersections and supports safe driving.

交差点では、右折時に対向直進車と衝突する右直事故や、対向車に道を譲られ、右折を開始し、譲ってくれた対向車の後方から接近してきた二輪車と衝突するサンキュー事故等、相手車両が見えないことが原因の事故が多発している。
このような状況を改善するために、無線通信を利用した安全運転支援システムが、従来から数多く提案されている。
例えば、特許文献1では、下記のような方法で右直事故を未然に防止しようとしている。
すなわち、(1)交差する2つの車両が、交差点手前に設置された無線通信装置と通信を行い、2つの車両が通信を行った時刻の差から、交差点内での衝突可能性を判断。衝突すると判断された場合は警報を発生する。(2)交差点手前に無線通信装置を設け、交差する2つの車両が送信した速度情報を受信。受信した速度情報を基に、各車両が交差点に到達する到達予測時間を算出し、この2つの到達予測時間の差から、交差点内での衝突可能性を判断。衝突すると判断された場合は警報を発生する。
At the intersection, there is a right-hand accident that collides with an oncoming vehicle when turning right, a thank you accident that collides with a two-wheeled vehicle approaching from the rear of the oncoming vehicle that gave way to the oncoming vehicle and started turning right. There are many accidents caused by invisible vehicles.
In order to improve such a situation, many safe driving support systems using wireless communication have been proposed.
For example, in Patent Document 1, a right-straight accident is attempted to be prevented by the following method.
That is, (1) Two intersecting vehicles communicate with a wireless communication device installed in front of the intersection, and the possibility of collision within the intersection is determined from the difference in time when the two vehicles communicated. If it is determined that there is a collision, an alarm is generated. (2) A wireless communication device is provided in front of the intersection to receive speed information transmitted by two intersecting vehicles. Based on the received speed information, the estimated arrival time for each vehicle to reach the intersection is calculated, and the possibility of collision within the intersection is determined from the difference between the two predicted arrival times. If it is determined that there is a collision, an alarm is generated.

特開2004−252871号公報(第6〜12頁、図1)Japanese Patent Laying-Open No. 2004-252871 (pages 6 to 12, FIG. 1)

しかしながら、特許文献1で開示されている安全運転支援システムには、下記のような問題がある。
すなわち、右折前の減速、あるいは一旦停止が考慮されておらず、警報が発生された場合、ドライバにとって煩わしい警報となる場合がある。
また、対向直進車をドライバが確認できている場合でも警報が発生してしまい、やはりドライバにとって煩わしい警報となる場合がある。
また、渋滞している対向車線の車両から道を譲られ、右折を開始し、譲ってくれた対向車両の後方から来た二輪車と衝突する、いわゆるサンキュー事故を防止することができない。
However, the safe driving support system disclosed in Patent Document 1 has the following problems.
That is, deceleration before a right turn or stop is not taken into consideration, and if an alarm is generated, it may be annoying for the driver.
Further, even when the driver can confirm the oncoming vehicle, an alarm is generated, which may be a troublesome alarm for the driver.
In addition, it is impossible to prevent a so-called thank-you accident where a road is given off from a congested oncoming vehicle, starts turning right, and collides with a motorcycle coming from behind the oncoming vehicle.

この発明は、上述のような課題を解決するためになされたものであり、本当に危険な状況だと判断された場合にのみ警報発生を実施し、警報の煩わしさを抑制するようにした交差点安全走行支援システムを得ることを目的にしている。   The present invention has been made to solve the above-described problems. An intersection safety is provided by generating an alarm only when it is determined that the situation is really dangerous, and suppressing the troublesomeness of the alarm. The goal is to obtain a driving support system.

この発明に係わる交差点安全走行支援システムにおいては、道路側に配置され、直進レーンの車両の有無及び交差点への車両の流入状況を検知する直進レーン状況検知手段、
道路側に配置され、右折レーンの車両の有無及び交差点への車両の流入状況を検知する右折レーン状況検知手段、
道路側に配置され、直進レーン状況検知手段及び右折レーン状況検知手段によって検知された情報を交差点近傍の各車両に送信する道路通信手段、
車両に搭載され、道路通信手段によって送信された情報を受信する車両通信手段、
車両に搭載され、自車両の挙動を検知するとともにこの挙動により自車両が直進及び左折及び右折のいずれを行おうとしているかを判定する自車両挙動検知手段、
車両に搭載され、車両通信手段によって受信した情報及び自車両挙動検知手段の検知及び判定結果に基づき、事故が発生し得る危険な状態かどうかを判定する危険状況判定手段、
及び車両に搭載され、危険状況判定手段の判定結果に基づき、注意を喚起するかまたは警報を発生する注意喚起警報発生手段を備え、
危険状況判定手段は、自車両挙動検知手段により自車両が直進しようとしていると判定され、右折レーン状況検知手段により自車右折レーンに右折待ち状態の車両が検知され、かつ、右折レーン状況検知手段により、対向右折車が右折動作を開始したことが検知された場合、交通事故が発生する危険性が非常に高いと判定し、
注意喚起警報発生手段は、警報を発生するものである。
In the intersection safe driving support system according to the present invention, a straight lane situation detection means that is arranged on the road side and detects the presence or absence of a vehicle in a straight lane and the inflow situation of the vehicle to the intersection,
Right turn lane status detection means for detecting the presence or absence of vehicles in the right turn lane and the inflow status of vehicles to the intersection, arranged on the road side,
Road communication means that is arranged on the road side and transmits information detected by the straight lane situation detection means and the right turn lane situation detection means to each vehicle near the intersection,
Vehicle communication means mounted on the vehicle for receiving information transmitted by the road communication means;
An own vehicle behavior detecting means mounted on the vehicle for detecting the behavior of the own vehicle and determining whether the own vehicle is going straight, left turn or right turn by this behavior;
A dangerous situation determination means for determining whether the vehicle is in a dangerous state where an accident may occur based on the information received by the vehicle communication means and the detection and determination results of the own vehicle behavior detection means;
And a warning alarm generating means mounted on the vehicle, for alerting or generating an alarm based on the determination result of the dangerous situation determination means,
The dangerous situation determining means determines that the own vehicle is going straight ahead by the own vehicle behavior detecting means, the right turn lane condition detecting means detects a vehicle waiting for a right turn in the right turn lane of the own vehicle, and the right turn lane condition detecting means Determines that the risk of a traffic accident is very high when it is detected that the opposite right turn car has started to turn right.
The alerting alarm generating means generates an alarm.

この発明は、以上説明したように、道路側に配置され、直進レーンの車両の有無及び交差点への車両の流入状況を検知する直進レーン状況検知手段、
道路側に配置され、右折レーンの車両の有無及び交差点への車両の流入状況を検知する右折レーン状況検知手段、
道路側に配置され、直進レーン状況検知手段及び右折レーン状況検知手段によって検知された情報を交差点近傍の各車両に送信する道路通信手段、
車両に搭載され、道路通信手段によって送信された情報を受信する車両通信手段、
車両に搭載され、自車両の挙動を検知するとともにこの挙動により自車両が直進及び左折及び右折のいずれを行おうとしているかを判定する自車両挙動検知手段、
車両に搭載され、車両通信手段によって受信した情報及び自車両挙動検知手段の検知及び判定結果に基づき、事故が発生し得る危険な状態かどうかを判定する危険状況判定手段、
及び車両に搭載され、危険状況判定手段の判定結果に基づき、注意を喚起するかまたは警報を発生する注意喚起警報発生手段を備え、
危険状況判定手段は、自車両挙動検知手段により自車両が直進しようとしていると判定され、右折レーン状況検知手段により自車右折レーンに右折待ち状態の車両が検知され、かつ、右折レーン状況検知手段により、対向右折車が右折動作を開始したことが検知された場合、交通事故が発生する危険性が非常に高いと判定し、
注意喚起警報発生手段は、警報を発生するので、直進時に非常に危険性が高い場合にのみ警報を発生することができ、煩わしくないものとすることができる。
As described above, the present invention is a straight lane state detection means that is arranged on the road side and detects the presence or absence of a vehicle in a straight lane and the inflow state of the vehicle to the intersection,
Right turn lane status detection means for detecting the presence or absence of vehicles in the right turn lane and the inflow status of vehicles to the intersection, arranged on the road side,
Road communication means that is arranged on the road side and transmits information detected by the straight lane situation detection means and the right turn lane situation detection means to each vehicle near the intersection,
Vehicle communication means mounted on the vehicle for receiving information transmitted by the road communication means;
An own vehicle behavior detecting means mounted on the vehicle for detecting the behavior of the own vehicle and determining whether the own vehicle is going straight, left turn or right turn by this behavior;
A dangerous situation determination means for determining whether the vehicle is in a dangerous state where an accident may occur based on the information received by the vehicle communication means and the detection and determination results of the own vehicle behavior detection means;
And a warning alarm generating means mounted on the vehicle, for alerting or generating an alarm based on the determination result of the dangerous situation determination means,
The dangerous situation determining means determines that the own vehicle is going straight ahead by the own vehicle behavior detecting means, the right turn lane condition detecting means detects a vehicle waiting for a right turn in the right turn lane of the own vehicle, and the right turn lane condition detecting means Determines that the risk of a traffic accident is very high when it is detected that the opposite right turn car has started to turn right.
Since the warning alarm generating means generates an alarm, it can generate an alarm only when the danger is very high when going straight ahead, and can be annoying.

この発明の実施の形態1〜実施の形態5による交差点安全走行支援システムを示す構成図である。It is a block diagram which shows the intersection safe driving assistance system by Embodiment 1- Embodiment 5 of this invention. この発明の実施の形態1〜実施の形態5による交差点安全走行支援システムの道路側の配置例を示す図である。It is a figure which shows the example of arrangement | positioning by the side of the road of the intersection safe driving assistance system by Embodiment 1-Embodiment 5 of this invention. この発明の実施の形態1及び実施の形態2による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。It is a figure which shows the positional relationship of the vehicle of the intersection vicinity of the intersection safe driving assistance system by Embodiment 1 and Embodiment 2 of this invention. この発明の実施の形態3及び実施の形態4による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。It is a figure which shows the positional relationship of the vehicle of the intersection vicinity of the intersection safe driving assistance system by Embodiment 3 and Embodiment 4 of this invention. この発明の実施の形態5による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。It is a figure which shows the positional relationship of the vehicle of the intersection vicinity of the intersection safe driving assistance system by Embodiment 5 of this invention.

実施の形態1.
以下、図を参照して本発明の実施の形態1について説明する。
図1は、この発明の実施の形態1による交差点安全走行支援システムを示す構成図である。
図1において、直進レーン状況検知手段1は、直進レーンの車両の有無、直進レーンの交差点への流入状況を検知する。右折レーン状況検知手段2は、右折レーンの車両の有無、右折レーンの交差点への流入状況を検知する。道路通信手段3は、直進レーン状況検知手段1及び右折レーン状況検知手段2で取得した情報を交差点近傍の車両に送信するもので、1〜3は道路側に設けられている。
車両通信手段4は、道路通信手段3によって送信された情報を受信する。自車両挙動検知手段5は、自車両の挙動を検知し、この挙動により、自車両が直進、左折、あるいは右折のいずれを行おうとしているかを判定する。危険状況判定手段6は、車両通信手段4によって受信した情報、自車両挙動検知手段5の進路の判定結果及び自車両の挙動から、事故が発生し得る危険な状態であるかどうかを判定する。注意喚起/警報発生手段7は、危険状況判定手段6の判定結果に基づき、注意喚起または警報発生を実施するものであり、4〜7は車両側に設けられている。
Embodiment 1 FIG.
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an intersection safe driving support system according to Embodiment 1 of the present invention.
In FIG. 1, the straight lane state detection means 1 detects the presence / absence of a vehicle in a straight lane and the inflow state to the intersection of the straight lane. The right turn lane status detection means 2 detects the presence or absence of a vehicle in the right turn lane and the inflow status to the intersection of the right turn lane. The road communication means 3 transmits information acquired by the straight lane situation detection means 1 and the right turn lane situation detection means 2 to vehicles near the intersection, and 1 to 3 are provided on the road side.
The vehicle communication means 4 receives the information transmitted by the road communication means 3. The own vehicle behavior detecting means 5 detects the behavior of the own vehicle, and determines whether the own vehicle is going straight, left turn, or right turn based on this behavior. The dangerous situation determination means 6 determines whether or not it is a dangerous state where an accident may occur from the information received by the vehicle communication means 4, the determination result of the course of the own vehicle behavior detection means 5, and the behavior of the own vehicle. The alert / alarm generating means 7 performs alerting or alarm generation based on the determination result of the dangerous situation determination means 6, and 4 to 7 are provided on the vehicle side.

図2は、この発明の実施の形態1による交差点安全走行支援システムの道路側の配置例を示す図である。
図2において、直進レーン状況検知手段1、右折レーン状況検知手段2及び道路通信手段3の配置例が示されている。直進レーン状況検知手段1、及び右折レーン状況検知手段2は、それぞれ直進レーンの車両の有無、直進レーンの交差点への流入状況、及び右折レーンの車両の有無、右折レーンの交差点への流入状況が検知できる位置に設置してある。
直進レーン状況検知手段1aは、対向車線側に、直進レーン状況検知手段1bは、自車線側にそれぞれ配置されている。
右折レーン状況検知手段2aは、対向車線側に、右折レーン状況検知手段2bは、自車線側にそれぞれ配置されている。
FIG. 2 is a diagram showing an arrangement example on the road side of the intersection safe driving support system according to Embodiment 1 of the present invention.
In FIG. 2, an arrangement example of the straight lane state detection unit 1, the right turn lane state detection unit 2, and the road communication unit 3 is shown. The straight lane condition detection means 1 and the right turn lane condition detection means 2 respectively indicate the presence / absence of a vehicle in a straight lane, the inflow condition to the intersection of the straight lane, the presence / absence of a vehicle in the right turn lane, and the inflow condition to the intersection of the right turn lane. It is installed at a position where it can be detected.
The straight lane condition detection means 1a is arranged on the opposite lane side, and the straight lane condition detection means 1b is arranged on the own lane side.
The right turn lane condition detection means 2a is arranged on the opposite lane side, and the right turn lane condition detection means 2b is arranged on the own lane side.

図3は、この発明の実施の形態1による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。
図3において、自車両11、対向右折車(右折待ち車両)12、対向直進車13が示されている。
FIG. 3 is a diagram showing a positional relationship of vehicles in the vicinity of the intersection of the intersection safe driving support system according to Embodiment 1 of the present invention.
In FIG. 3, a host vehicle 11, an opposite right turn vehicle (right turn waiting vehicle) 12, and an opposite straight vehicle 13 are shown.

次に、動作について説明する。
まず、直進レーン状況検知手段1及び右折レーン状況検知手段2にて、対向直進レーンと対向右折レーンの状況を検知する。図3のように、対向右折レーンに右折待ち車両12が複数存在し、対向直進車13が来ている場合は、その状況を検知する。
この直進レーン状況検知手段1及び右折レーン状況検知手段2は、車両との無線通信を利用し、車両の車速、アクセル/ブレーキ操作、車速、加速度のいずれか、もしくは全てを取得することによって、直進レーン、及び右折レーンの車両の状況を検知する。
次に、直進レーン状況検知手段1及び右折レーン状況検知手段2によって取得した情報を道路通信手段3にて交差点近傍の車両に送信する。
一方、車両では、道路通信手段3から送信された情報を車両通信手段4にて受信する。また自車両挙動検知手段5は、自車両の挙動(アクセル/ブレーキ操作、車速、加速/減速等)を検知するとともに、自車両11が直進、左折、あるいは右折のいずれを行おうとしているかを判定する。このとき、自車両挙動検知手段5は、自車両11のウィンカ操作の状況を基に、直進/左折/右折を判定する。
Next, the operation will be described.
First, the straight lane status detection means 1 and the right turn lane status detection means 2 detect the status of the opposite straight lane and the opposite right turn lane. As shown in FIG. 3, when there are a plurality of right turn waiting vehicles 12 in the opposite right turn lane and the opposite straight vehicle 13 is coming, the situation is detected.
The straight lane status detection means 1 and the right turn lane status detection means 2 use a wireless communication with the vehicle to acquire one or all of the vehicle speed, the accelerator / brake operation, the vehicle speed, and the acceleration of the vehicle. Detects the vehicle status of the lane and the right turn lane.
Next, the information acquired by the straight lane situation detection means 1 and the right turn lane situation detection means 2 is transmitted to the vehicle near the intersection by the road communication means 3.
On the other hand, in the vehicle, the vehicle communication means 4 receives the information transmitted from the road communication means 3. The own vehicle behavior detecting means 5 detects the behavior of the own vehicle (accelerator / brake operation, vehicle speed, acceleration / deceleration, etc.) and determines whether the own vehicle 11 is going straight, left turn, or right turn. To do. At this time, the own vehicle behavior detection means 5 determines straight / left turn / right turn based on the situation of the winker operation of the own vehicle 11.

次に、危険状況判定手段6は、車両通信手段4で受信した情報、自車両挙動検知手段5の進路判定結果及び自車両11の挙動から、交差点内で自車両11と他の車両が交通事故を起こすリスクがあるかどうかを判定する。
本実施の形態1の場合、図3のように、対向右折レーンに右折待ち車両12が多数存在し、自車両11から対向直進車13が見えにくい状況となっているため、交通事故のリスクがあると判定される。
このように、交通事故のリスクがあると判定された場合は、注意喚起/警報発生手段7にて注意喚起が実施される。
Next, based on the information received by the vehicle communication means 4, the course determination result of the own vehicle behavior detecting means 5, and the behavior of the own vehicle 11, the dangerous situation judging means 6 detects that the own vehicle 11 and another vehicle are in a traffic accident. Determine whether there is a risk of
In the case of the first embodiment, as shown in FIG. 3, there are a large number of vehicles 12 waiting for a right turn in the opposite right turn lane, and it is difficult to see the oncoming straight vehicle 13 from the own vehicle 11. It is determined that there is.
As described above, when it is determined that there is a risk of a traffic accident, the alert / alarm generating means 7 performs alerting.

実施の形態1によれば、以上のような構成にすることで、右折車に対し、対向直進車が確認しにくい状況でのみ、対向直進車に対する注意喚起を実施することが可能となり、煩わしくない注意喚起が可能となる。   According to the first embodiment, the configuration as described above makes it possible to alert a right-turn vehicle to an oncoming straight vehicle only in a situation where it is difficult to confirm the oncoming straight vehicle. It is possible to call attention.

実施の形態2.
実施の形態1では、対向直進車が見えにくいという状況が判定されさえすれば、注意喚起を実施したが、実施の形態2は、自車両11が右折のために一旦減速、あるいは停止した後、右折を開始したタイミングで、対向直進車13の接近を検知した場合にのみ警報を発生するようにした。
この場合の装置構成、動作、及び道路の状況は、実施の形態1と同様であるので、その説明を省略する。
Embodiment 2. FIG.
In the first embodiment, as long as it is determined that it is difficult to see the oncoming straight-ahead vehicle, the alert is executed. However, in the second embodiment, after the host vehicle 11 once decelerates or stops for a right turn, An alarm is generated only when an approaching oncoming vehicle 13 is detected at the timing when a right turn is started.
Since the apparatus configuration, operation, and road conditions in this case are the same as those in the first embodiment, description thereof is omitted.

実施の形態2によれば、上記のようにすることで、右折車に対し、衝突の危険性が非常に高い場合にのみ警報を発生することが可能となる。   According to the second embodiment, as described above, an alarm can be generated only when the risk of a collision is very high for a right turn vehicle.

実施の形態3.
実施の形態1及び実施の形態2では、自車両が右折する場合について説明したが、実施の形態3は、自車両が直進する場合についてのものである。
実施の形態3の装置構成、動作は、実施の形態1と同様であるので、その説明を省略する。
Embodiment 3 FIG.
In the first embodiment and the second embodiment, the case where the host vehicle turns to the right has been described. However, the third embodiment is a case where the host vehicle goes straight.
Since the apparatus configuration and operation of the third embodiment are the same as those of the first embodiment, description thereof is omitted.

図4は、この発明の実施の形態3による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。
図4において、自車両11、自車右折レーンに存在する右折待ち車両21、対向右折車(右折待ち状態)22が示されている。
図4に示すような交差点での車両の存在状況の場合、自車右折レーンに存在する右折待ち車両21に邪魔されて、自車両11から対向右折車22が見えにくいので、危険状況判定手段6では、やはり交通事故のリスクが高いと判定され、注意喚起/警報発生手段7にてドライバに対し、注意喚起が実施される。
FIG. 4 is a diagram showing the positional relationship of vehicles in the vicinity of the intersection of the intersection safe driving support system according to Embodiment 3 of the present invention.
In FIG. 4, the own vehicle 11, the right turn waiting vehicle 21 existing in the own vehicle right turn lane, and the opposite right turn vehicle (right turn waiting state) 22 are shown.
In the case where the vehicle is present at the intersection as shown in FIG. 4, it is difficult to see the opposite right turn vehicle 22 from the own vehicle 11 because it is obstructed by the right turn waiting vehicle 21 present in the right turn lane of the own vehicle. Then, it is determined that the risk of the traffic accident is high, and the alert / alarm generating means 7 alerts the driver.

実施の形態3によれば、上記のようにすることで、自車両が直進する場合にも、煩わしくない注意喚起が可能となる。 According to the third embodiment, by performing as described above, even when the host vehicle goes straight ahead, it is possible to call attention that is not bothersome.

実施の形態4.
実施の形態3では、対向右折車22が見えにくいという状況が判定されさえすれば、注意喚起を実施したが、実施の形態4は、対向右折車22が発進した段階で警報を発生するようにした。
この場合の装置構成、動作及び道路の状況は、実施の形態3と同様であるので、その説明を省略する。
Embodiment 4 FIG.
In the third embodiment, as long as it is determined that it is difficult to see the opposite right turn car 22, the alert is issued. However, in the fourth embodiment, an alarm is generated when the opposite right turn car 22 starts. did.
Since the apparatus configuration, operation, and road conditions in this case are the same as those in the third embodiment, description thereof will be omitted.

実施の形態4によれば、上記のようにすることで、自車両が直進する場合にも、衝突の危険性が非常に高い場合にのみ警報を発生することが可能となる。 According to the fourth embodiment, as described above, even when the host vehicle goes straight ahead, it is possible to generate an alarm only when the risk of collision is very high.

実施の形態5.
実施の形態5では、サンキュー事故が発生しやすい状況について説明する。
この場合の装置構成、動作は、実施の形態1と同様であるので、その説明を省略する。
Embodiment 5 FIG.
In the fifth embodiment, a situation where a thank-you accident is likely to occur will be described.
Since the apparatus configuration and operation in this case are the same as those in the first embodiment, description thereof will be omitted.

図5は、この発明の実施の形態5による交差点安全走行支援システムの交差点近傍の車両の位置関係を示す図である。
図5において、自車両11、対向車線の渋滞車両31、対向直進レーンから交差点に接近している二輪車32が示されている。
図5に示すような交差点での車両の存在状況では、よく対向車にパッシングされ、自車両11が右折を開始するが、対向車線の渋滞車両31の影から二輪車32が現れ、この二輪車32との間で、いわゆるサンキュー事故を発生するリスクが高い。
したがって、実施の形態5でも、危険状態判定手段6では、事故が発生するリスクが高いと判定され、注意喚起/警報発生手段7によって注意喚起が実施される。
すなわち、危険状況判定手段6は、自車両挙動検知手段5により自車両が右折をしようとしていると判定され、直進レーン状況検知手段1により対向直進レーンが渋滞していることが検知された場合、対向直進レーンから交差点に接近する二輪車との交通事故が発生するリスクが高いと判定し、注意喚起/警報発生手段7は、この判定結果に基づき、注意喚起を実施するようにした。
また、道路通信手段3と車両通信手段4は、ドライバによるパッシング情報を送受信するとともに、危険状況判定手段6は、車両通信手段4を介して対向直進車のパッシング情報を受信し、自車両挙動検知手段5により自車両が右折をしようとしていると判定された場合、対向直進レーンから交差点に接近する二輪車との交通事故が発生するリスクが高いと判定し、注意喚起/警報発生手段7は、この判定結果に基づき、注意喚起を実施するようにしたものである。
FIG. 5 is a diagram showing the positional relationship of vehicles in the vicinity of the intersection of the intersection safe driving support system according to Embodiment 5 of the present invention.
FIG. 5 shows the own vehicle 11, a congested vehicle 31 in the opposite lane, and a two-wheeled vehicle 32 approaching the intersection from the opposite straight lane.
In the presence situation of the vehicle at the intersection as shown in FIG. 5, the vehicle is often passed by the oncoming vehicle, and the own vehicle 11 starts to turn right, but the two-wheeled vehicle 32 appears from the shadow of the congested vehicle 31 on the opposite lane. There is a high risk that a so-called thank you accident will occur.
Therefore, also in the fifth embodiment, the danger state determination unit 6 determines that the risk of an accident is high, and the alert / alarm generation unit 7 performs alerting.
That is, when the host vehicle behavior detection unit 5 determines that the host vehicle is about to make a right turn, the danger situation determination unit 6 detects that the oncoming straight lane is congested by the straight lane status detection unit 1. It is determined that there is a high risk of a traffic accident with a motorcycle approaching the intersection from the oncoming straight lane, and the alert / alarm generating means 7 performs alerting based on the determination result.
Further, the road communication means 3 and the vehicle communication means 4 transmit and receive passing information by the driver, and the dangerous situation determination means 6 receives the passing information of the oncoming straight vehicle via the vehicle communication means 4 and detects the own vehicle behavior. If it is determined by means 5 that the host vehicle is about to turn right, it is determined that there is a high risk of a traffic accident occurring with a motorcycle approaching the intersection from the opposite straight lane, and the alert / alarm generating means 7 Based on the judgment result, alerting is carried out.

なおこの場合、二輪車32を何らかの方法で検知し、二輪車32が接近していることを明示的にドライバに示してもよいが、単にこういう場合は、サンキュー事故が発生しやすいということを、「対向車線の二輪車にご注意ください。」という音声等でドライバに意識させるだけで、交通事故の防止は、十分可能である。   In this case, the two-wheeled vehicle 32 may be detected by some method, and the driver may be explicitly shown that the two-wheeled vehicle 32 is approaching, but in such a case, it is easy to cause a thank-you accident. It is possible to prevent traffic accidents simply by making the driver aware of the voice, such as “Be careful of lane motorcycles.”

実施の形態5によれば、渋滞している対向車線の間を右折しようとした状況で、渋滞車両の後方から接近する二輪車への注意喚起が可能となる。
また、交差点におけるサンキュー事故を防止することが可能となる。
According to the fifth embodiment, it is possible to alert a two-wheeled vehicle approaching from behind a congested vehicle in a situation where a right turn is to be made between congested oncoming lanes.
In addition, it is possible to prevent a thank you accident at the intersection.

1:直進レーン状況検知手段
2:右折レーン状況検知手段
3:道路通信手段
4:車両通信手段
5:自車両挙動検知手段
6:危険状況判定手段
7:注意喚起/警報発生手段
11:自車両
12:対向右折車両(右折待ち車両)
13:対向直進車
21:自車右折レーンの右折待ち車両
22:対向右折車(右折待ち車両)
31:対向車線の渋滞車両
32:対向車線を直進する二輪車
1: Straight lane situation detection means 2: Right turn lane situation detection means 3: Road communication means 4: Vehicle communication means 5: Own vehicle behavior detection means 6: Danger situation determination means 7: Alert / alarm generation means 11: Own vehicle 12 : Oncoming right turn vehicle (right turn waiting vehicle)
13: Oncoming straight car 21: Right turn waiting vehicle on own vehicle right turn lane 22: Oncoming right turn car (right turn waiting vehicle)
31: Congested vehicle in oncoming lane 32: Two-wheeled vehicle traveling straight in oncoming lane

Claims (1)

道路側に配置され、直進レーンの車両の有無及び交差点への車両の流入状況を検知する直進レーン状況検知手段、
道路側に配置され、右折レーンの車両の有無及び交差点への車両の流入状況を検知する右折レーン状況検知手段、
道路側に配置され、上記直進レーン状況検知手段及び上記右折レーン状況検知手段によって検知された情報を交差点近傍の各車両に送信する道路通信手段、
車両に搭載され、上記道路通信手段によって送信された情報を受信する車両通信手段、
上記車両に搭載され、自車両の挙動を検知するとともにこの挙動により自車両が直進及び左折及び右折のいずれを行おうとしているかを判定する自車両挙動検知手段、
上記車両に搭載され、上記車両通信手段によって受信した情報及び自車両挙動検知手段の検知及び判定結果に基づき、事故が発生し得る危険な状態かどうかを判定する危険状況判定手段、
及び上記車両に搭載され、上記危険状況判定手段の判定結果に基づき、注意を喚起するかまたは警報を発生する注意喚起警報発生手段を備え、
上記危険状況判定手段は、上記自車両挙動検知手段により自車両が直進しようとしていると判定され、上記右折レーン状況検知手段により自車右折レーンに右折待ち状態の車両が検知され、かつ、上記右折レーン状況検知手段により、対向右折車が右折動作を開始したことが検知された場合、交通事故が発生する危険性が非常に高いと判定し、
上記注意喚起警報発生手段は、警報を発生することを特徴とする交差点安全走行支援システム。


A straight lane state detection means that is arranged on the road side and detects the presence or absence of a vehicle in a straight lane and the inflow state of the vehicle to the intersection,
Right turn lane status detection means for detecting the presence or absence of vehicles in the right turn lane and the inflow status of vehicles to the intersection, arranged on the road side,
Road communication means that is arranged on the road side and transmits information detected by the straight lane status detection means and the right turn lane status detection means to each vehicle near the intersection,
Vehicle communication means mounted on a vehicle and receiving information transmitted by the road communication means;
An own vehicle behavior detecting means mounted on the vehicle for detecting the behavior of the own vehicle and determining whether the own vehicle is going straight, left turn or right turn by the behavior;
A dangerous situation determination means for determining whether or not the vehicle is in a dangerous state where an accident may occur based on the information received by the vehicle communication means and the detection and determination results of the own vehicle behavior detection means;
And a warning alarm generating means mounted on the vehicle, for calling attention or generating an alarm based on the determination result of the dangerous situation determination means,
The dangerous situation determination means determines that the own vehicle is going straight ahead by the own vehicle behavior detection means, detects a right turn waiting vehicle in the right turn lane of the own vehicle by the right turn lane condition detection means, and When the lane condition detection means detects that the oncoming right turn car has started to turn right, it is determined that the risk of a traffic accident is very high,
The intersection safety driving support system, wherein the warning alarm generating means generates an alarm.


JP2009208174A 2009-09-09 2009-09-09 Intersection safe traveling support system Pending JP2009289289A (en)

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