JP2011180689A - Drive support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To decide collision possibility from the route guidance information of the other vehicle even if a driver of the other vehicle forgets to turn on a direction indicator, in a drive support device. <P>SOLUTION: A control device (4) includes a collision possibility decision means (15C) acquiring direction indicator information and the route guidance information of the specified other vehicle, comparing a travel direction indicated by the direction indicator information of the specified other vehicle and a travel direction indicated by the route guidance information, and deciding that there is a possibility that the specified other vehicle and an own vehicle collide in a specified intersection when the route guidance information indicates a right turn or a left turn though the direction indicator information indicates straight advance. When it is decided that there is the possibility that the other vehicle and the own vehicle collide with each other, the drive support device performs the operation control of warning means (13, 14) so as to warn a driver of the own vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a driving support device, and more particularly to a driving support device as a communication system using inter-vehicle communication, road-to-vehicle communication, or the like.

Some vehicles are equipped with a driving support device as a communication system using vehicle-to-vehicle communication, road-to-vehicle communication, or the like in order to perform notification to the driver or intervention in vehicle operation.
This driving support device uses an inter-vehicle communication device that performs inter-vehicle communication in order to eliminate the possibility that the host vehicle is caught in another vehicle that turns left at an intersection or collides with an opposing other vehicle as a surrounding vehicle. ing.

JP 2007-323185 A

  The vehicle driving support system according to Patent Document 1 includes an inter-vehicle communication unit that transmits and receives information between the host vehicle and another vehicle, an intersection specifying unit that specifies an intersection where the host vehicle enters, and the intersection specifying unit. Control means provided with other vehicle specifying means for specifying other vehicles approaching the intersection specified by the vehicle information acquired by the inter-vehicle communication means, and turn signal information of other vehicles and route guidance information of the navigation system Is used to predict the course of the vehicle.

By the way, in the above-mentioned patent document 1, when the other vehicle forgets to take out the turn signal or changes the route without following the route guidance information of the navigation system as the display device, Therefore, it is not possible to display alert information such as “Careful to approaching vehicle” on the own vehicle, and the own vehicle may come into contact with another vehicle due to a sudden change of course of the other vehicle. .
In addition, blinker information and route guidance information are used for predicting the course of a vehicle at an intersection, but the method of alerting when such information does not match is not taken into consideration and improvement is desired. It was.

  Therefore, an object of the present invention is to provide a driving support device that can determine the possibility of collision from the route guidance information of another vehicle even if the driver of the other vehicle has forgotten to turn the blinker.

  The present invention provides an inter-vehicle communication device that transmits and receives information between a host vehicle and another vehicle, and specifies an intersection specifying unit that specifies an intersection where the host vehicle enters, and approaches the intersection specified by the intersection specifying unit. In a driving support device provided with a control device including another vehicle specifying means for specifying another vehicle from information on another vehicle acquired by the inter-vehicle communication device, the control device is specified by the other vehicle specifying means. The turn signal information and the route guidance information of the other vehicle are acquired, and the turn signal information travels straight by comparing the traveling direction indicated by the turn signal information of the other vehicle specified by the other vehicle specifying means with the advance direction indicated by the route guide information. However, when the route guidance information indicates a right turn or a left turn, the other vehicle specified by the other vehicle specifying unit and the own vehicle are used as the intersection specifying unit. A collision possibility judging means for judging that there is a possibility of collision at the specified intersection, and when the collision possibility judgment means judges that the other vehicle and the own vehicle may collide, In order to warn the driver of the vehicle, the warning means is operated and controlled.

  The driving support device according to the present invention can determine the possibility of collision from the route guidance information of the other vehicle even if the driver of the other vehicle forgets to turn the blinker.

FIG. 1 is a flowchart of driving support control. Example 1 FIG. 2 is a diagram illustrating a driving support state. Example 1 FIG. 3 is a system configuration diagram of the driving support apparatus mounted on the vehicle. Example 1 FIG. 4 is a system configuration diagram of the driving support apparatus mounted on the vehicle. (Example 2)

  Even if the driver of the other vehicle has forgotten to take out the turn signal, the present invention indicates that the turn signal information indicates a straight travel, while the turn signal information indicates a straight turn, When a left turn is indicated, it is determined and determined that there is a possibility that the specified other vehicle and the host vehicle collide at the specified intersection.

1 to 3 show Embodiment 1 of the present invention.
In FIG. 3, 1 is a vehicle. Although the vehicle 1 is a two-wheeled vehicle in the first embodiment, it can also be applied to a four-wheeled vehicle.
A driving support device 2 is mounted on the vehicle 1.
The driving support device 2 is a communication system capable of communication such as vehicle-to-vehicle communication or road-to-vehicle communication. The vehicle-to-vehicle communication device 3, the control device 4, the vehicle signal input device 5, the information providing device 6, and the GPS receiving device 7. With.
The inter-vehicle communication device 3 transmits / receives information between the own vehicle and the other vehicle, that is, receives information on the other vehicle that is the surrounding vehicle, outputs the information to the control device 4, and outputs the information on the own vehicle to the surrounding vehicle. It is transmitted to other vehicles.
The control device 4 contacts the inter-vehicle communication device 3, the vehicle signal input device 5, the information providing device 6, and a GPS receiver (in the case of a vehicle equipped with a navigation system, this is the receiver of the navigation system) 7. Then, the vehicle-to-vehicle communication device 3 is operated and controlled to transmit and receive information, and the information providing device 6 is controlled and operated to display and warn the driver.
The vehicle signal input device 5 includes a vehicle speed sensor 8 for detecting a vehicle speed, a brake sensor 9 for detecting a brake state, a throttle sensor 10 for detecting a throttle opening degree, and a left as a winker switch so as to detect a vehicle state. The winker switch 11 and the right winker switch 12 are communicated, various vehicle operation signals from these sensors are input, and these various vehicle operation signals are output to the control device 4. Thereby, the turn signal information of the target other vehicle can be obtained by inter-vehicle communication, and the course change of the other vehicle intended by the driver of the target other vehicle can be confirmed.
The information providing device 6 includes a display device (in the case of a vehicle equipped with a navigation system, the display of the navigation system) 13 and a speaker 14 as warning means for the driver. In response to the instruction signal from the control device 4, the display device 13 provides information on other vehicles to the driver, or the speaker 14 is activated to provide information by voice. By providing information based on the result of the determination of the possibility of collision, the driver can be alerted appropriately. The display device 13 outputs the route guidance information obtained from the inter-vehicle communication device 3 of another vehicle that is a surrounding vehicle to the control device 4 so that the control device 4 can predict the course of the target other vehicle. is there.
The GPS receiver 7 receives a GPS signal from the satellite device and outputs it to the control device 4.

The control device 4 includes an information processing unit 15 that processes various types of information. The information processing unit 15 extracts a target other vehicle from the received information and determines the possibility of collision. The information processing unit 15 compares and determines the turn signal information and the route guidance information, and determines the course of the target other vehicle. By predicting, the possibility of collision with higher reliability is determined.
For this reason, the information processing unit 15 obtains the intersection specifying means 15A for specifying the intersection where the own vehicle enters and the other vehicle approaching the intersection specified by the intersection specifying means 15A by the inter-vehicle communication device 3 Other vehicle specifying means 15B for specifying from vehicle information is provided.
Further, the control device 4 acquires the turn signal information and route guidance information of the other vehicle specified by the other vehicle specifying means 15B, and the traveling direction and route indicated by the turn signal information of the other vehicle specified by the other vehicle specifying means 15B. Compared with the direction of travel indicated by the guidance information, the turn signal information indicates a straight turn, but when the route guidance information indicates a right turn or a left turn, the other vehicle specified by the other vehicle specifying means 15B and the host vehicle are If there is a collision possibility determination means 15C that determines that there is a possibility of a collision at the intersection identified by the intersection identification means 15A, the collision possibility determination means 15C may cause another vehicle and the host vehicle to collide with each other. In order to warn the driver of the own vehicle when the determination is made, the speaker 14 or the display device 13 that is a warning means is controlled to operate or the display device 13 is notified accordingly. To be displayed.
In addition, the control device 4 indicates that the turn signal information indicates a straight turn, but the route guidance information indicates a right turn or a left turn, and the turn signal information indicates a right turn or a left turn, but the route guide information indicates a straight turn. Thus, the operation of the speaker 14 and the display device 13 which are warning means is controlled so as to change the content of the warning.

Next, the driving support control according to the first embodiment will be described based on the flowchart of FIG.
As shown in FIG. 1, when the program of the control device 4 is started (step A01), information on other vehicles that are surrounding vehicles is acquired by the inter-vehicle communication device 3 (step A02), and the intersection where the host vehicle enters is targeted. It is determined whether there is another vehicle approaching the target intersection (step A03).
In this case, the intersection where the host vehicle enters can be specified by whether or not an intersection exists in the traveling direction of the host vehicle. The presence or absence of an intersection can be obtained from the map information on the display device 13. Further, whether or not the other vehicle approaches the target intersection is determined based on the position and traveling direction of the other vehicle acquired by the inter-vehicle communication device 3 and the position of the intersection obtained from the map information on the display device 13.
If this step A03 is YES, turn signal information (right turn, left turn, forward) of the other vehicle as a target is acquired (step A04), and further route guidance information (right turn, left turn, forward) of the other vehicle as a target. ) Is acquired (step A05), and it is determined whether or not the turn signal information and the route guidance information match (step A06).
If this step A06 is YES, it follows the turn signal information, travels based on this turn signal information, determines whether or not there is a possibility of collision (judgment possibility determination process) (step A07), When this step A07 is YES, the information providing device 6 provides information for calling attention to “beware of approaching vehicles” (step A08).
On the other hand, when the step A06 is NO, in order to determine whether or not the turn signal is forgotten, it is determined whether or not the turn signal information is forward (forget to turn the turn signal) (step A09). In this case, the process proceeds to step A07.
If this step A09 is YES, since the turn signal does not appear and the vehicle goes straight, it is determined whether the vehicle is traveling based on the route guidance information according to the route guidance information and there is a possibility of a collision. (Step A10), and if this step A10 is YES, the route is being changed without taking the turn signal, and the information providing device 6 indicates that “another vehicle may approach. Information for alerting that there is “is present” is provided (step A11).
In providing information for alerting in this step A11, the information providing device 6 changes the display on the display device 13 and the sound on the speaker 14 different from the information providing for alerting in the step A08, and the driver, in particular, It is possible to inform the two-wheeled vehicle driver that there is another vehicle that changes the course without taking the turn signal.
After the process of step A08 or after the process of step A11, the program is returned (step A12).
Further, when the step A03 is NO, the step A07 is NO, and the step A10 is NO, the program is returned (step A12).

As a result, in the first embodiment, as shown in FIG. 2, do not follow the route guidance information on the display device 13, accidentally forget it, or hit it on an unknown road, turn left or right without taking the turn signal When there are other vehicles A and B, the inter-vehicle communication device of the other vehicles A and B transmits the turn signal information of the other vehicles A and B and the route guidance information of the display device 13 to surrounding vehicles. Thus, in the host vehicle C that has received the information from the inter-vehicle communication device, it is determined that the other vehicles A and B that have not turned the turn signal are turning left or right, and “careful about left turn / oncoming right turn” or “ Information is provided to the driver that there is a possibility that another vehicle is approaching.
Therefore, by comparing the turn signal information of the other vehicle obtained by inter-vehicle communication with the route guidance information and predicting the traveling direction of the other vehicle, the route guidance information can be obtained even if the driver of the other vehicle forgets to take out the turn signal. From this, the possibility of collision can be determined.
In addition, the control device 4 indicates that the turn signal information indicates a straight turn, but the route guidance information indicates a right turn or a left turn, and the turn signal information indicates a right turn or a left turn, but the route guide information indicates a straight turn. Therefore, since the operation of the speaker 14 and the display device 13 as warning means is controlled so as to change the warning content, it is possible that the driver of the other vehicle does not travel along the guidance route, so the warning content is changed. Thus, information can be appropriately provided to the driver of the host vehicle.

FIG. 4 shows Embodiment 2 of the present invention.
In the second embodiment, portions that perform the same functions as those of the first embodiment will be described with the same reference numerals.
The features of the second embodiment are as follows. That is, as shown in FIG. 4, in the driving support device 2 mounted on the vehicle 1, the road-to-vehicle communication device 16 is additionally provided in addition to the vehicle-to-vehicle communication device 3.
The road-vehicle communication device 16 transmits and receives information between the host vehicle and the road machine 17 and outputs the information to the control device 4. In addition, the control device 4 acquires information on other vehicles by the road-to-vehicle communication device 16. That is, the communication means is not limited to vehicle-to-vehicle communication, but communication means “vehicle → roadside infrastructure → vehicle” using road-to-vehicle communication is used.
In this case, the intersection where the host vehicle enters can be specified by whether or not an intersection exists in the traveling direction of the host vehicle. In addition, the presence or absence of an intersection can be obtained from the map information on the display device 13 or the road-to-vehicle communication device 16. Further, whether or not the other vehicle approaches the target intersection is determined by the position and traveling direction of the other vehicle acquired by the inter-vehicle communication device 3, the map information on the display device 13, or the intersection obtained by the road-to-vehicle communication device 16. Judged by position.
Thereby, even when vehicle-to-vehicle communication cannot be performed due to a radio wave shield or the like, information on other vehicles can be acquired by road-to-vehicle communication. Moreover, reliability can be improved by using together the information obtained by road-to-vehicle communication, and the information obtained by vehicle-to-vehicle communication. In other words, it is limited to places where roadside infrastructure is installed, but it improves reliability by using it as an auxiliary means when transmission / reception of inter-vehicle communication is bad due to radio wave shielding etc. You can make it. Further, if information such as road shape and lane distinction can be used by road-to-vehicle communication, the right turn lane / left turn lane can be identified, so that the route of the target vehicle can be predicted without route guidance information.

  The driving support device according to the present invention can be applied to various vehicles.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Driving assistance apparatus 3 Inter-vehicle communication apparatus 4 Control apparatus 5 Vehicle signal input apparatus 6 Information provision apparatus 7 GPS receiving apparatus 13 Display apparatus 14 Speaker 15 Information processing part 15A Intersection identification means 15B Other vehicle identification means 15C Collision possibility determination means

Claims (3)

  An inter-vehicle communication device that transmits and receives information between the host vehicle and another vehicle is provided, and an intersection specifying unit that specifies an intersection where the host vehicle enters, and the other vehicle that approaches the intersection specified by the intersection specifying unit In the driving support device provided with the control device provided with the other vehicle specifying means for specifying from the information of the other vehicle acquired by the inter-vehicle communication device, the control device is a winker of the other vehicle specified by the other vehicle specifying means. Information and route guidance information are obtained, and the turn signal information indicates straight ahead by comparing the traveling direction indicated by the turn signal information of the other vehicle specified by the other vehicle specifying means and the advance direction indicated by the route guide information. However, when the route guidance information indicates a right turn or a left turn, the other vehicle specified by the other vehicle specifying unit and the host vehicle are specified by the intersection specifying unit. It is provided with a collision possibility determination means for determining that there is a possibility of collision at an intersection, and when the collision possibility determination means determines that there is a possibility of collision between another vehicle and the own vehicle, A driving support device characterized by controlling the operation of warning means for warning.   In the control device, the turn signal information indicates a straight turn, but the route guidance information indicates a right turn or a left turn, and the turn signal information indicates a right turn or a left turn, but the route guide information indicates a straight turn, The driving support device according to claim 1, wherein the warning means is controlled to change the content of warning to the driver.   The road-vehicle communication apparatus which transmits / receives information between the own vehicle and a roadside machine is provided, The said control apparatus acquires the information of another vehicle by the said road-vehicle communication apparatus, The Claim 1 or Claim 2 characterized by the above-mentioned. The driving support device according to 1.

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