JP2005145385A5 - - Google Patents

Description

Emergency flashing light control device

  The present invention relates to an emergency flashing lamp control device that controls the lighting state of an emergency flashing lamp disposed in a vehicle, and more particularly to automatic lighting and automatic extinguishing of an emergency flashing lamp.

  Conventionally, an emergency flashing lamp (hazard lamp) is provided in a vehicle. This hazard lamp is a function of notifying the surrounding vehicles of the occurrence of anomaly and prompting attention by simultaneously lighting (flashing) the left and right direction indicator lights (blinkers).

  Specifically, the hazard lamp is used when it is unavoidable to stop due to a vehicle failure or when the vehicle approaches the tail of a traffic jam.

  The operation of these hazard lamps is basically performed by the driver. However, in Patent Document 1, the traffic jam prediction area data is stored and the brake operation of the host vehicle is monitored, and the brake operation is performed within the traffic jam prediction area. Disclosed is a technique for automatically lighting a hazard when executed in the above.

  Similarly, Patent Documents 2 to 4 disclose technologies for automatically turning on a hazard lamp based on a braking operation of the host vehicle. Patent Document 5 discloses a technique for automatically lighting a brake lamp or a hazard lamp during deceleration by automatic control.

JP 2002-236980 A JP 2003-252192 A JP 2000-289523 A JP-A-5-270313 JP 2000-113394 A

  By the way, the lighting of the hazard lamp does not necessarily interlock with the brake operation or the braking operation. For example, on an expressway or a bypass, the last vehicle in a traffic jam turns on the hazard lamp, so that the following vehicle can recognize the occurrence of the traffic jam early and avoid a collision with the vehicle in the traffic jam.

  Here, the last vehicle in the traffic jam is required to turn on the hazard lamp when there is a possibility that the following vehicle will approach regardless of whether or not the deceleration operation is being performed. Further, when the succeeding vehicle decelerates sufficiently and comes behind the own vehicle, that is, when the own vehicle is no longer at the end of the traffic jam, it is desirable to turn off the hazard lamp.

  However, in the above-described prior art, it is determined whether or not the hazard lamp should be turned on based on the brake operation of the own vehicle. For example, when the own vehicle decelerates with a sufficient margin, the hazard is automatically turned on. Could not do. Further, even if the hazard is automatically turned on, it is not possible to automatically execute the hazard extinction, and unnecessary hazard lighting may continue.

  That is, the conventional hazard lamp control has a problem in that appropriate automatic execution of turning on and off of the hazard lamp cannot be realized. Inappropriate control in information transmission means between vehicles, such as a hazard lamp, causes confusion of information, and leakage of necessary information, resulting in hindering safety of vehicle travel.

  The present invention has been made to solve the above-described problems caused by the prior art, and an object thereof is to provide an emergency flashing lamp control device that automatically turns on and off an appropriate emergency flashing lamp of a hazard lamp. To do.

  In order to solve the above-described problems and achieve the object, an emergency flashing light control device according to the invention of claim 1 is an emergency flashing light control device that controls a lighting state of an emergency flashing light arranged in a vehicle, Based on the surrounding vehicle state acquisition means for acquiring the traveling state of the preceding vehicle and / or the traveling state of the following vehicle, and the lighting of the emergency flashing light based on the state of the surrounding vehicle acquired by the surrounding vehicle state acquisition means and / or And an emergency blinking lamp control means for turning off the light.

  According to the first aspect of the invention, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, and turns on / off the emergency flashing light based on the acquired state of the surrounding vehicle. Execute.

  According to a second aspect of the present invention, there is provided the emergency flashing lamp control device according to the first aspect of the present invention, wherein the emergency flashing lamp control means has a traveling speed of one or more preceding vehicles acquired by the surrounding vehicle state acquisition means. The emergency flashing lamp is determined to be turned on when the speed is smaller than a predetermined speed.

  According to the second aspect of the present invention, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, and when the acquired traveling speed of the preceding vehicle is smaller than a predetermined speed. It is determined that the emergency flashing light should be turned on.

  The emergency flashing light control device according to the invention of claim 3 further comprises a traveling road specifying means for specifying the road on which the host vehicle is traveling in the invention of claim 1 or 2, wherein the emergency flashing light control means is It is determined that the emergency flashing light should be turned on when the traveling speed of the preceding vehicle acquired by the surrounding vehicle state acquiring unit is smaller than the minimum speed of the road specified by the traveling road specifying unit. And

  According to the invention of claim 3, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, specifies the road on which the host vehicle is traveling, and the traveling speed of the preceding vehicle is the lowest of the road. When it is smaller than the speed, it is determined that the emergency flashing lamp should be turned on.

  According to a fourth aspect of the present invention, there is provided the emergency flashing lamp control device according to the first, second or third aspect of the present invention, further comprising own vehicle traveling state acquisition means for acquiring the traveling state of the own vehicle, The means compares the traveling speed and / or acceleration of the surrounding vehicle acquired by the surrounding vehicle state acquisition means with the traveling speed and / or acceleration of the own vehicle acquired by the own vehicle traveling state acquisition means, and the emergency flashing light It is characterized by determining whether or not should be lit.

  According to the invention of claim 4, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, acquires the traveling state of the host vehicle, and determines the speed and acceleration of the preceding vehicle and the following vehicle. Then, it is determined whether or not the emergency flashing lamp should be turned on by comparing with the speed and acceleration of the own vehicle.

  According to a fifth aspect of the present invention, there is provided an emergency flashing lamp control device according to the first to fourth aspects of the present invention, wherein the emergency flashing lamp control means determines that the emergency flashing lamp should be lit, and the surrounding vehicle state The emergency blinking lamp is turned on when the acquisition unit detects a following vehicle within a predetermined distance.

  According to the fifth aspect of the present invention, the emergency flashing lamp control device determines that the emergency flashing lamp should be turned on from the state of the host vehicle or the surrounding vehicle, and the succeeding vehicle exists within a predetermined distance range. Turn on the emergency flashing light.

  According to the first aspect of the present invention, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, and turns on / off the emergency flashing light based on the acquired surrounding vehicle state. Therefore, there is an effect that it is possible to obtain an emergency flashing lamp control device that determines the occurrence of traffic congestion with high accuracy and automatically turns on and off the appropriate emergency flashing lamp.

  According to the invention of claim 2, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, and the acquired traveling speed of the preceding vehicle is smaller than a predetermined speed. Therefore, it is possible to obtain an emergency flashing light control device that can accurately determine the occurrence of a traffic jam and automatically and appropriately execute the emergency flashing light. Play.

  According to the invention of claim 3, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, specifies the road on which the own vehicle is traveling, and the traveling speed of the preceding vehicle is Since it is determined that the emergency flashing light should be turned on when the speed is smaller than the minimum speed, the emergency flashing that automatically determines the occurrence of traffic congestion and automatically turns on the appropriate emergency flashing light according to the driving road There exists an effect that a lamp control device can be obtained.

  According to the invention of claim 4, the emergency flashing lamp control device acquires the traveling state of the preceding vehicle and the traveling state of the following vehicle, acquires the traveling state of the own vehicle, and the speed and acceleration of the preceding vehicle and the following vehicle. And whether or not the emergency flashing lamp should be turned on by comparing with the speed and acceleration of the own vehicle, the emergency lighting that automatically turns on the appropriate emergency flashing light based on the relative relationship between the own vehicle and the preceding vehicle There exists an effect that a blinking light control device can be obtained.

  According to the invention of claim 5, the emergency flashing lamp control device determines that the emergency flashing lamp should be turned on from the state of the host vehicle or the surrounding vehicle, and the subsequent vehicle exists within a predetermined distance range. In this case, since the emergency flashing lamp is turned on, it is possible to obtain an emergency flashing lamp control device that can suppress the lighting of the unnecessary emergency flashing lamp.

  Exemplary embodiments of an emergency flashing lamp control device according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is a schematic configuration diagram showing a schematic configuration of a hazard control device which is an embodiment of an emergency flashing lamp control device according to the present invention. As shown in the figure, the hazard control device 1 and the hazard switch 3 are connected to the hazard lamp 4. The hazard switch 3 is a switch that receives an operation by the driver and controls the operation of the hazard lamp 4. The hazard control device 1 acquires the states of the host vehicle and the surrounding vehicles and automatically controls the operation of the hazard lamp 4. It is a control device.

  Under the control of the hazard switch 3 or the hazard control device 1, the hazard lamp 4 turns on and off the hazard. In the present specification, the “lighting” of the hazard means a state in which the left and right direction indicator lights (blinkers) blink simultaneously. Also, “extinguishing” the hazard means a process of ending the simultaneous blinking of the left and right direction indicator lamps.

  The hazard control device 1 is connected to the navigation system 2 and includes a main control unit 11, a camera 12, a radar 13, a vehicle-to-vehicle communication processing unit 14, a road-to-vehicle communication processing unit 15, a vehicle speed measuring unit 16, and a vehicle position. A detection unit 17 is included.

  The camera 12 captures the periphery of the host vehicle, for example, the front and rear, and performs image processing on the result to output to the main control unit 11. Further, the radar 13 detects the presence or absence of a vehicle around the host vehicle, for example, in front or behind, and when there is a preceding vehicle or a following vehicle, measures the distance and outputs the measured distance to the main control unit 11.

  The inter-vehicle communication processing unit 14 is a processing unit that communicates with vehicles around the host vehicle directly or via a center, and transmits / receives position information, speed information, information on an operation state, and the like. Furthermore, the road-to-vehicle communication processing unit 15 acquires information on road conditions and surrounding vehicles by communication with a roadside communication device disposed in the vicinity of the road, and outputs the information to the main control unit 11. For this road-to-vehicle communication, for example, DSRC (Dedicated Short Range Communication) can be used.

  The vehicle speed measurement unit 16 acquires the vehicle speed, acceleration, and the like of the host vehicle and outputs them to the main control unit 11. Further, the vehicle position detection unit 17 acquires the position information of the host vehicle from the navigation system 2, specifies the traveling road on which the host vehicle is traveling, and outputs the specified road to the main control unit 11.

  The main control unit 11 includes a host vehicle state detection unit 11a, a preceding vehicle state detection unit 11b, a subsequent vehicle state detection unit 11c, and a hazard control unit 11d. The own vehicle state detection unit 11 a detects the state of the own vehicle from the outputs of the road-to-vehicle communication processing unit 15, the vehicle speed measurement unit 16, and the vehicle position detection unit 17. Each function of the main control unit 11 may be realized by an electronic circuit or may be realized as software operating on a microcomputer.

  Further, the preceding vehicle state detection unit 11b is based on the outputs of the camera 12, the radar 13, the inter-vehicle communication processing unit 14, and the road-to-vehicle communication processing unit 15, and the presence, position, speed, acceleration, The lighting state of the hazard lamp of the preceding vehicle is detected. Here, the lighting state of the hazard lamp in the preceding vehicle may be acquired from the image captured by the camera 12 by image processing, or may be received from the preceding vehicle by the inter-vehicle communication processing unit 14.

  Similarly, the succeeding vehicle state detection unit 11c is based on the outputs of the camera 12, the radar 13, the inter-vehicle communication processing unit 14, and the road-to-vehicle communication processing unit 15, and the presence, position, speed, and acceleration of the following vehicle relative to the own vehicle. Then, the lighting state of the hazard lamp of the following vehicle is detected. Here, the lighting state of the hazard lamp in the following vehicle may be acquired from the image captured by the camera 12 by image processing, or may be received from the following vehicle by the inter-vehicle communication processing unit 14.

  The hazard control unit 11d determines whether the hazard lamp needs to be turned on or off based on the detection results of the host vehicle state detection unit 11a, the preceding vehicle state detection unit 11b, and the subsequent vehicle detection unit 11c. Then, the hazard lamp 4 is controlled.

  Specifically, the hazard control unit 11d determines that the hazard lamp 4 needs to be turned on when the host vehicle reaches the end of the traffic jam. Further, it is determined that the hazard lamp 4 needs to be turned off when the vehicle is no longer at the end of the traffic jam or when the traffic jam is resolved.

  For example, if the host vehicle is at the end of a traffic jam on an expressway, the following vehicle will not notice that the traffic jam has occurred and will approach at a normal traveling speed. There is a danger of a rear-end collision. Therefore, when the host vehicle is at the end of the traffic jam, it is necessary to turn on the hazard lamp 4 and call attention to the following vehicle.

  On the other hand, if the following vehicle recognizes the presence of traffic and follows the vehicle safely, that is, if the vehicle is no longer at the end of the traffic, or if the traffic is resolved, the hazard lamp 4 is turned on. Is no longer necessary. Unnecessary lighting of the hazard lamp 4 may disturb surrounding vehicles and hinder the transmission of necessary information. Therefore, it is necessary to turn off the hazard lamp 4.

  Here, with reference to FIG. 2, the determination in the hazard controller 11d will be described with a specific example. In FIG. 2, the road R0 on which the host vehicle C0 is traveling is a highway. Further, a preceding vehicle C1 and a preceding vehicle C2 are traveling in front of the host vehicle C1, and a subsequent vehicle C3 is traveling behind the host vehicle C1.

  At this time, if the preceding vehicle speeds V1 and V2 of the preceding vehicles C1 and C2 are slow, it is considered that the road is congested. Therefore, even if the own vehicle speed V1 of the own vehicle C0 is larger than the preceding vehicle speeds V1 and V2, it is considered that the own vehicle C1 follows the preceding vehicles V1 and V2 and bears the tail of the traffic jam.

  It should be noted that the speeds of the preceding vehicles C1 and C2 may be obtained by image processing of an image captured by the camera 12, or may be obtained by the radar 13. Moreover, you may acquire by communication between vehicles or communication between road vehicles. In particular, the speed of the preceding vehicle C1 immediately before the host vehicle can be easily obtained by image processing or radar, but the speed of the preceding vehicle C2 is preferably obtained by communication.

  Further, when determining the presence or absence of traffic congestion, the speed of only the preceding vehicle C1 may be used, or the speed is determined comprehensively using the speed of the preceding vehicle C2 and the speed of other preceding vehicles existing ahead. You may do it. Note that, here, a single lane road R0 is described as an example, but it is desirable to use information on vehicles in other lanes when making a determination in multiple lanes.

  Next, a speed that is a criterion for determining whether or not there is a traffic jam may be set to a predetermined value in the hazard control device 1, or the minimum speed of the road on which the host vehicle is traveling (whether it is a highway). For example, 50 km / h) may be used. Also, different values may be used depending on the type and state of the road that is running. The specification of the road type can be realized by using the position of the host vehicle detected by the vehicle position detection unit 17 and referring to a map database or the like. The road condition can be acquired by using road-to-vehicle communication.

  By the way, the determination of the presence or absence of traffic jam is not limited to the method of using the speed of the preceding vehicle, and any method can be used. For example, if the preceding vehicle C1 lights a hazard lamp, it is considered that the road C0 is congested. Furthermore, if the information on the location where the traffic jam occurs is acquired by road-to-vehicle communication, the presence or absence of traffic jam around the host vehicle may be determined using the acquired information.

  Further, when the host vehicle speed V0 is larger than the preceding vehicle speeds V1 and V2, the preceding vehicle speeds V1 and V0 are compared with the minimum speed set on the road R0 or a predetermined speed set by the hazard control unit 11d. At most, the host vehicle C0 decelerates and needs to follow the preceding vehicle C1, so the hazard lamp 4 is turned on to alert the following vehicle C3.

  Similarly, when the subsequent vehicle speed V3 is larger than the own vehicle speed V0, the own vehicle speed V1 may be larger than the minimum speed set on the road R0 or a predetermined speed set by the hazard control unit 11d. The hazard lamp 4 is turned on to alert the following vehicle C3 to avoid a rear-end collision.

  If it is determined that the own vehicle is at the end of the traffic jam and the hazard lamp 4 needs to be turned on, the hazard lamp 4 may be turned on immediately, or when the following vehicle is detected, The hazard lamp 4 may be turned on when approaching a predetermined range.

  That is, the lighting of the hazard lamp 4 at the time of traffic jam is performed for the purpose of calling attention to the following vehicle, and therefore it is not necessary to turn it on when there is no following vehicle. Therefore, if the presence / absence and relative position of the following vehicle can be reliably detected, the object can be achieved by turning on the hazard lamp 4 only when the presence or approach of the following vehicle is detected.

  Next, turning off of the hazard lamp 4 will be described. As described above, the hazard lamp 4 needs to be turned off when the vehicle is no longer at the end of the traffic jam or when the traffic jam is resolved. Further, when there is no following vehicle, it is not necessary to turn on the hazard lamp 4.

  Therefore, the hazard controller 11d determines whether or not to turn off the hazard lamp 4 based on the state of the subsequent vehicle detected by the subsequent vehicle state detector 11c and the state of the host vehicle detected by the host vehicle state detector 11a. Determine.

  Specifically, the hazard controller 11d determines that the hazard lamp 4 should be turned off when the following vehicle C3 does not exist within a predetermined distance range from the host vehicle C0. Further, when the subsequent vehicle C3 lights up the hazard lamp, it is considered that the subsequent vehicle C3 recognizes the occurrence of the traffic jam, and therefore it is determined that the hazard lamp 4 should be turned off.

  Furthermore, it is determined that the hazard lamp 4 should be turned off in the same manner when the subsequent vehicle 3 has sufficiently decelerated to eliminate the risk of a rear-end collision with the host vehicle C0. Further, when the speed of the host vehicle becomes a value greater than or equal to a predetermined value, it is considered that the traffic jam has been resolved, so it is determined that the hazard lamp 4 should be turned off.

  Next, the automatic lighting process of the hazard lamp 4 in the hazard control device 1 will be described. FIG. 3 is a flowchart for explaining the specific processing contents of the automatic lighting process in the hazard control device 1, and this processing flow is repeatedly executed when the hazard lamp 4 of the host vehicle is not lit.

  As shown in the figure, in the hazard control device 1, the preceding vehicle state detection unit 11b first determines the state of the preceding vehicle from the outputs of the camera 12, the radar 13, the inter-vehicle communication processing unit 14, and the road-to-vehicle communication processing unit 15. Is acquired (step S101). Next, the hazard controller 11d determines whether or not the speed of the preceding vehicle is equal to or lower than a predetermined speed (step S102). Here, the “predetermined speed” is the minimum speed of the road or a preset speed, and if the road information is necessary, the road is identified from the position information.

  As a result of step S102, when the speed of the preceding vehicle exceeds the predetermined speed (No in step S102), the hazard control unit 11d detects the speed and acceleration of the preceding vehicle detected by the preceding vehicle information detection unit 11b, and the host vehicle. Presence or absence of a collision between the preceding vehicle and the host vehicle is predicted using the speed and acceleration of the host vehicle detected by the state detection unit 11a (step S103).

  As a result of step S103, when it is predicted that there is no collision between the preceding vehicle and the host vehicle (step S103, No), the preceding vehicle state detection unit 11c performs the camera 12, the radar 13, the inter-vehicle communication processing unit 14, and the road-to-vehicle communication. The state of the following vehicle is acquired from the output of the processing unit 15 (step S104).

  Thereafter, the hazard control unit 11d uses the speed and acceleration of the preceding vehicle detected by the subsequent vehicle information detection unit 11c and the speed and acceleration of the own vehicle detected by the own vehicle state detection unit 11a to Presence or absence of collision is predicted (step S105).

  When the speed of the preceding vehicle is equal to or lower than the predetermined speed (step S102, Yes), when it is predicted that there may be a collision between the preceding vehicle and the own vehicle (step S103, Yes), or when there is a collision between the following vehicle and the own vehicle. When it is predicted that it is possible (step S105, Yes), the hazard control unit 11d determines that the hazard should be turned on (step S106), and based on the detection result by the subsequent vehicle state detection unit 11c, the hazard control unit 11d It is monitored whether there is a following vehicle within the distance range (step S107).

  This monitoring is repeatedly executed until the subsequent vehicle is detected within the predetermined distance range. If the subsequent vehicle is detected within the predetermined distance range (step S107, Yes), the hazard controller 11d Lighting is executed (step S108).

  After step S108 ends or when it is predicted that there is no collision between the following vehicle and the host vehicle (step S105, No), the hazard control device 1 ends the process.

  Next, the automatic extinguishing process of the hazard lamp 4 in the hazard control device 1 will be described. FIG. 3 is a flowchart for explaining the specific processing contents of the automatic turn-off processing in the hazard control device 1, and this processing flow is repeatedly executed when the hazard lamp 4 of the host vehicle is turned on.

  As shown in the figure, in the hazard control device 1, the following vehicle state detection unit 11c first determines the state of the following vehicle from the outputs of the camera 12, the radar 13, the inter-vehicle communication processing unit 14, and the road-to-vehicle communication processing unit 15. Is acquired (step S201). Subsequently, the hazard control unit 11d determines whether or not there is a subsequent vehicle within a predetermined distance from the host vehicle based on the detection result by the subsequent vehicle state detection unit 11c (step S202).

  When the following vehicle exists within a predetermined distance from the own vehicle (step S202, Yes), the hazard control unit 11d determines whether the following vehicle is lit with a hazard (step S203).

  If the following vehicle does not light the hazard (No at Step S203), the hazard control unit 11d determines whether or not the following vehicle has sufficiently decelerated (Step S204). Furthermore, if the following vehicle is not decelerating sufficiently (step S204, No), the hazard controller 11d determines whether or not the speed of the host vehicle exceeds a predetermined value (step S205).

  On the other hand, when the following vehicle does not exist within a predetermined distance from the host vehicle (No at Step S202), when the following vehicle lights a hazard (Step S203, Yes), the subsequent vehicle performs sufficient deceleration. (Step S204, Yes), or when the speed of the host vehicle exceeds a predetermined value (step S205, Yes), the hazard control unit 11d executes the extinguishing of the hazard lamp 4.

  After the hazard lamp 4 is turned off (step S206) or when the speed of the host vehicle is less than the predetermined value, the hazard control unit 11d does not turn off the hazard lamp 4 and continues to turn on the hazard lamp 4.

  As described above, the hazard control device 1 according to the present embodiment detects the presence or absence of traffic congestion from the speed of the preceding vehicle or the lighting state of the hazard, and based on the position, speed, and lighting state of the hazard vehicle of the following vehicle The hazard lamp 4 is turned on. Therefore, the hazard lamp 4 can be turned on by detecting with high accuracy that the host vehicle is located at the tail end of the traffic jam.

  In addition, the hazard lamp 4 is automatically turned off based on the position, speed, and hazard lighting state of the following vehicle, thereby suppressing unnecessary hazard lighting and performing optimal hazard control to realize vehicle accident prevention. be able to.

  Although the present embodiment has been described by taking the case of traveling on an expressway as an example, the use of the present invention is not limited to this and can be applied to general roads and bypasses.

  Further, in the present embodiment, the hazard control device 1 is provided independently of the hazard switch 3, so that the hazard lamp 4 is not automatically controlled and the hazard lamp 4 is operated only manually by the driver. The entire hazard control device 1 may be stopped.

  Further, in this embodiment, the camera 12, the radar 13, the inter-vehicle communication processing unit 14, the road-to-vehicle communication processing 15, the vehicle speed measuring unit 16, and the vehicle position detecting unit 17 are used only for the automatic control of the hazard lamp 4. These various means can be shared with other electronic control devices mounted on the vehicle.

  As described above, the emergency blinking lamp control device according to the present invention is useful for automatic control of the emergency blinking lamp, and is particularly suitable for automatic lighting / automatic extinction in a traffic jam.

It is a schematic block diagram which shows the schematic structure of the hazard control control apparatus concerning the Example of this invention. It is explanatory drawing explaining the determination in the hazard control part shown in FIG. It is a flowchart explaining the specific processing content of the automatic lighting process in the hazard control apparatus shown in FIG. It is a flowchart explaining the specific process content of the automatic light extinction process in the hazard control apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hazard control apparatus 2 Navigation system 3 Hazard switch 4 Hazard lamp 11 Main control part 11a Own vehicle state detection part 11b Leading vehicle state detection part 11c Subsequent vehicle state detection part 11d Hazard control part 12 Camera 13 Radar 14 Inter-vehicle communication processing part 15 Road-to-vehicle communication processing unit 16 Vehicle speed measurement unit 17 Vehicle position detection unit C0 Own vehicle C1, C2 Preceding vehicle C3 Subsequent vehicle V0 Own vehicle speed V1, V2 Preceding vehicle speed V3 Subsequent vehicle speed R0 Road

Claims (5)

An emergency flashing light control device for controlling a lighting state of an emergency flashing light arranged in a vehicle,
Neighboring vehicle state acquisition means for acquiring the traveling state of the preceding vehicle and / or the traveling state of the subsequent vehicle;
Based on the state of the surrounding vehicle acquired by the surrounding vehicle state acquisition unit, an emergency flashing lamp control unit that performs lighting and / or extinguishing of the emergency flashing light,
An emergency flashing light control device characterized by comprising:   The emergency flashing light control means determines that the emergency flashing light should be turned on when the traveling speed of one or more preceding vehicles acquired by the surrounding vehicle state acquisition means is smaller than a predetermined speed. The emergency flashing lamp control device according to claim 1.   The vehicle further includes a traveling road identifying unit that identifies a road on which the host vehicle travels, and the emergency blinking light control unit is configured to identify the traveling speed of the preceding vehicle acquired by the surrounding vehicle state acquiring unit by the traveling road specifying unit. The emergency flashing lamp control device according to claim 1, wherein the emergency flashing lamp is determined to be turned on when the speed is smaller than a minimum speed of the road.   The vehicle further includes host vehicle driving state acquisition means for acquiring the driving state of the host vehicle, wherein the emergency flashing lamp control unit is configured to acquire the driving speed and / or acceleration of the surrounding vehicle acquired by the surrounding vehicle state acquisition unit, and the host vehicle driving state. The emergency flashing light according to claim 1, 2 or 3, wherein the acquisition means determines whether or not the emergency flashing light should be turned on by comparing the traveling speed and / or acceleration of the host vehicle acquired. Control device.   The emergency flashing light control means determines that the emergency flashing light should be turned on, and turns on the emergency flashing light when the surrounding vehicle state acquisition means detects a following vehicle within a predetermined distance. The emergency flashing lamp control device according to any one of claims 1 to 4.