JP2007314016A - Vehicular collision warning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular collision warning device capable of instantly, certainly and intuitively recognizing warning of collision forecasting of a vehicle by at least either one's own vehicle occupant or the other vehicle occupant and further quickly, certainly and intuitively recognizing a collision direction of the vehicle. <P>SOLUTION: In the vehicular collision warning device W, light emission devices 11-19 are provided on windows 1-6, a room mirror 7 and rear-view mirrors 8, 9 of the vehicle C, the light emission devices 11-19 can send the warning to the inside of a cabin by emitting a light, and the light emission devices 11-16 provided on the windows 1-6 can further also send the warning to the outside of the vehicle by emitting the light. When collision of the vehicle C is forecasted, a collision direction of the vehicle is further forecasted and the light emission devices 11-19 emit the light so as to inform it of the collision of the vehicle C and the collision direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle collision warning device, and in particular, at least one of a vehicle window, a room mirror, and a side mirror is provided with light emitting means, and when the vehicle collision is predicted, the light emitting means is caused to emit light. The present invention relates to a vehicle collision warning device.

  Conventionally, various vehicle collision warning devices for predicting and warning of vehicle collision have been put to practical use. For example, in Patent Document 1, when the collision risk level of a vehicle is detected and the collision risk level becomes high, an alarm sound is generated by an alarm buzzer and the driving concentration level of the driver is detected. A vehicle collision warning device that changes a warning sound is disclosed. There is also described a technique for displaying an alarm on a display provided in the vehicle when the risk of collision of the vehicle becomes high.

  For example, Patent Document 2 also discloses a vehicle collision warning device that determines the possibility of collision of a vehicle and generates a warning sound or displays a warning on a display provided in the vehicle when there is a possibility of collision. It is disclosed. Note that when the host vehicle and the other vehicle enter the same intersection from different directions at the same speed, it is easy to cause a collision at the intersection, and other vehicles other than the preceding vehicle have a predetermined time for the host vehicle. A technique is disclosed in which it is determined that there is a possibility of a vehicle collision when it is detected that the same positional relationship is continuously detected.

JP 2004-231017 A JP 2005-135025 A

  Conventional vehicle collision warning devices are mainly used to generate a warning sound or display a warning or alarm with a display or lamp provided in the vehicle. There is a problem that it is difficult to instantly and reliably intuitively recognize a prediction warning (a possibility of a collision). For example, even if an alarm sound is generated, the alarm sound may be erased by other sounds (audio, sound from outside the vehicle, etc.), and even if an alarm is displayed on the display, the passenger notices the alarm display. It may take a considerable amount of time to recognize. In other words, there is a limit to increasing the cognitive ability of the occupant to recognize the collision prediction warning.

  In addition, when a collision with another vehicle is predicted, a warning for predicting a collision is not given to the other vehicle, and the collision direction of the vehicle is predicted and notified only by giving a warning for predicting a collision. It is not. Here, even if the collision direction of the vehicle is predicted and the collision direction is notified via voice or display on the display, it is extremely difficult to intuitively recognize the collision direction quickly and reliably. Is possible. Therefore, it is difficult to contribute to improving the situation before the collision of the vehicle and the occupant including the collision avoidance operation by the driver after the collision prediction.

  SUMMARY OF THE INVENTION An object of the present invention is to make an at least one occupant of an own vehicle and another vehicle instantly and surely intuitively recognize a vehicle collision prediction alarm (a possibility of a collision) in a vehicle collision alarm device. In addition, the collision direction of the vehicle can be recognized intuitively quickly and reliably, thereby contributing to the improvement of the situation before the collision of the vehicle and the occupant including the collision avoidance operation by the driver after the collision is predicted. And so on.

  The vehicle collision warning device according to claim 1 is a vehicle collision warning device that predicts and warns of a vehicle collision, and includes a collision prediction means for predicting a collision of the vehicle, a window of the vehicle, a room mirror, and a side mirror. A light emitting means provided in at least one of the light emitting means capable of notifying the inside and outside of the vehicle by emitting light, and when a collision of the vehicle is predicted by the collision predicting means, And a light emission control means for causing the light emitting means to emit light.

  In this vehicle collision warning device, at least one of a vehicle window, a room mirror, and a side mirror is provided with light emitting means, and the light emitting means emits light to notify at least one of the inside and outside of the vehicle. Can do. When a collision of the vehicle is predicted by the collision prediction means, the light emission means is controlled by the light emission control means to emit light, so that at least one occupant of the own vehicle and the other vehicle is notified of the vehicle collision prediction (the collision is It is possible to intuitively recognize instantly and reliably.

The following configuration can be adopted in the invention of claim 1.
The light emitting means is provided on each of the peripheral portions of the window, the room mirror, and the side mirror. The light emitting means is provided in each of a front window, a rear window, and left and right side windows, the collision prediction means includes a collision direction determination means for determining and predicting a collision direction of a vehicle, and the light emission control means includes a collision Based on the collision direction determined by the direction determination means, the light emitting means of the part capable of reporting the collision direction is caused to emit light (claim 3).

  The light emitting means is provided in each of the rear mirror and the left and right side mirrors, and the collision prediction means includes a collision direction determination means for determining and predicting a collision direction of the vehicle, and the light emission control means is a collision direction determination means. Based on the determined collision direction, the light emitting means of the part capable of reporting the collision direction is caused to emit light. Vehicle-to-vehicle communication means capable of communicating with other vehicles and receiving information on the position and running state of the other vehicle, wherein the collision prediction means is received by the vehicle-to-vehicle communication means and information on the position and running state of the host vehicle. A collision with another vehicle is predicted based on the vehicle position and travel state information.

  Illuminance detection means for detecting the illuminance of external light is provided, and the light emission control means changes the light emission luminance or light emission mode of the light emission means according to the illuminance detected by the illuminance detection means. A collision remaining period detecting means for detecting a remaining collision period from when a collision of a vehicle is predicted by the collision predicting means until a vehicle collision occurs, and the light emission control means is detected by the remaining collision period detecting means. When the remaining collision period is equal to or shorter than the predetermined period, the light emission mode or the light emission part of the light emitting means is changed (claim 7).

  Driving skill detection means for detecting the driving skill of at least one driver of the host vehicle and the other vehicle is provided, and the collision prediction means predicts a vehicle collision based on the driving skill detected by the driving skill detection means. The determination level for determination is changed (claim 8). The light emission control unit causes the light emission unit to emit light in any one of lighting, blinking, and dynamic lighting. The light emitting means comprises an electroluminescence sheet (claim 10).

  According to the vehicle collision warning device of the first aspect, the light emitting means is provided in at least one of the vehicle window, the room mirror, and the side mirror, and the light emitting means emits light to direct to at least one of the inside and the outside of the vehicle. When a collision of the vehicle is predicted by the collision prediction means, the light emission control means causes the light emission means to emit light, so that at least one of the own vehicle and the other vehicle occupant is notified of the vehicle collision prediction (a collision has occurred). Can be recognized instantly and reliably, and the recognition can be enhanced not only for the driver but also for passengers in the front passenger seat and rear seat, and therefore after the collision is predicted. Including the collision avoidance operation by the driver, it is possible to contribute to improving the situation before the collision of the vehicle and the occupant.

  According to the vehicle collision warning device of the second aspect, since the light emitting means are provided at the peripheral portions of the window, the room mirror, and the side mirror, respectively, the visibility of the window, the room mirror, and the side mirror is secured, The light emitting means can be provided so that a vehicle collision prediction warning can be recognized instantly and surely intuitively.

  According to the vehicle collision warning device of the third aspect, the light emitting means is provided in each of the front window, the rear window, and the left and right side windows, and the collision prediction means includes a collision direction determination means for determining and predicting the collision direction of the vehicle. And the light emission control means causes the light emission means of the portion capable of notifying the collision direction to emit light based on the collision direction determined by the collision direction determination means, so that the occupant can quickly and reliably determine the vehicle collision direction. Intuitive recognition.

  According to the vehicle collision warning device of the fourth aspect, the light emitting means is provided in each of the room mirror and the left and right side mirrors, and the collision predicting means includes a collision direction determining means for determining and predicting the collision direction of the vehicle, Based on the collision direction determined by the collision direction determination means, the control means causes the light emitting means of the part capable of notifying the collision direction to emit light, so that the occupant can quickly and reliably intuitively recognize the vehicle collision direction. Can be made.

  According to the vehicle collision warning device of claim 5, the vehicle-to-vehicle communication means capable of receiving information on the position and running state of the other vehicle by communicating with the other vehicle is provided. Collisions with other vehicles are predicted based on the status information and information on the position and running state of other vehicles received by the inter-vehicle communication means, so it is possible to accurately predict collisions with other vehicles and hide them in buildings, etc. It is possible to predict a collision with another vehicle.

  According to the vehicle collision warning device of the sixth aspect, the illuminance detection means for detecting the illuminance of the external light is provided, and the light emission control means has the light emission brightness or the light emission mode of the light emission means depending on the illuminance detected by the illuminance detection means. Therefore, the light emission means can emit light with an appropriate light emission luminance or light emission mode according to the external illuminance, and the light emission of the light emission means can be reliably recognized even in the daytime.

  According to the vehicle collision warning device of claim 7, the light emission control means includes the collision allowance period detecting means for detecting the remaining collision period from when the collision of the vehicle is predicted by the collision predicting means until the collision of the vehicle occurs. Changes the light emission mode or the light emitting part of the light emitting means when the remaining collision period detected by the remaining collision period detecting means is less than or equal to the predetermined period, so that the passenger can be sure that the remaining collision period has been shortened. Can be notified.

  According to the collision alarm device for a vehicle of claim 8, the driving skill detecting means for detecting the driving skill of the driver of at least one of the own vehicle and the other vehicle is provided, and the collision predicting means is detected by the driving skill detecting means. Since the determination level for determining vehicle collision prediction is changed based on the driving skill, the vehicle collision prediction can be determined at an appropriate determination level according to the driver's driving skill.

  According to the vehicle collision alarm device of the ninth aspect, the light emission control means causes the light emission means to emit light in any one of the light emission modes of lighting, blinking, and dynamic lighting. The light emitting means can reliably emit light in different light emission modes when the extra period is equal to or shorter than the predetermined period and when it is longer than the predetermined period.

  According to the vehicle collision warning device of the tenth aspect, since the light emitting means is made of an electroluminescence sheet, the light emitting means is securely attached to the window, the room mirror, and the side mirror, and the functions of these windows and mirrors are hindered. The light emitting means can be provided without.

  In the vehicle collision alarm device of the present invention, a light emitting device is provided in each of the window, the room mirror, and the side mirror of the vehicle (automobile), and these light emitting devices can emit light to notify the interior of the vehicle. The light emitting device provided in the can emit light to notify the outside of the vehicle, and when a vehicle collision is predicted, the vehicle collision direction can be predicted and the vehicle collision and the collision direction can be notified. The light emitting device emits light.

  As shown in FIGS. 1 and 3, the vehicle C includes a front window 1, a left front side window 2, a right front side window 3, a left rear side window 4, a right rear side window 5, a rear window 6, a room mirror 7, and a left side. A mirror 8 and a right side mirror 9 are provided. These windows 1 to 6 and mirrors 7 to 9 include a front window light emitting device 11, a left front side window light emitting device 12, a right front side window light emitting device 13, and a left rear side window light emitting device 14. A right rear side light emitting device 15, a rear window light emitting device 16, a room mirror light emitting device 17, a left side mirror light emitting device 18, and a right side mirror light emitting device 19 are provided.

  As shown in FIG. 2, a dashboard 20, a steering wheel 21, left and right front seats 22, and a rear seat 23 are installed in the vehicle C, and as shown in FIGS. 2 and 3, the vehicle C has , C / U 25 (control unit 25), various sensors / communication devices such as a vehicle speed sensor 30, a yaw rate sensor 31, a front camera 32, a left side camera 33, a right side camera 34, a rear camera 35, an inter-vehicle communication antenna 36, A GPS antenna 37, an IC card reader 38, and an illuminance sensor 39 are provided. These sensors / communication devices 30 to 39 and the light emitting devices 11 to 19 are electrically connected to the C / U 25.

  As shown in FIGS. 1 to 3, the vehicle collision warning device W of the present invention includes the light emitting devices 11 to 19, the C / U 25, and the sensors / communication devices 30 to 39, and the C / U 25 and the sensors 30 and 31. The cameras 32 to 35, the antennas 36 and 37, and the IC card reader 38 constitute a collision prediction means for predicting the collision of the vehicle C. When the collision of the vehicle C is predicted by the C / U 25, the light emitting devices 11 to 11 The light emission control means for emitting light 19 is configured.

  Further, the C / U 25 and the antenna 36 constitute a vehicle-to-vehicle communication means capable of communicating with the other vehicle Ca and receiving information on the position and traveling state of the other vehicle Ca, and the collision of the vehicle C is predicted by the C / U 25. The remaining collision period detecting means for detecting the remaining collision period until the collision of the vehicle C occurs, and the driver of the host vehicle C and the other vehicle Ca is constituted by the C / U 25, the antenna 36 and the IC card reader 38. The driving skill detection means which can detect the driving skill is configured.

  As shown in FIG. 1, the light emitting devices 11 to 19 are provided at the peripheral portions of the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9, respectively, and configured to be able to notify the inside of the vehicle by emitting light. Furthermore, the light-emitting devices 11 to 16 provided in the windows 1 to 6 are configured to be able to be notified even if they are directed outside the vehicle by emitting light.

  Each light-emitting device 11-19 consists of EL (electroluminescence) sheet | seats, and this EL sheet | seat laminates | stacks a laminate layer, a transparent electrode, a light emitting layer, an insulating layer, a back electrode layer, a laminate layer, for example with a light emitting layer depending on the case. A plurality of insulating layers are formed, and a voltage is applied and driven through a dedicated inverter. The EL sheet is formed into a frame shape corresponding to the size of the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9, and has flexibility, and the windows 1 to 6, the room mirror 7, the side mirror 8, 9 is adhered to the curved surface in close contact.

  The C / U 25 includes a computer including a CPU, a ROM, and a RAM. A collision prediction program for predicting a collision of the vehicle C is stored in the ROM of the computer. When the collision of the vehicle C is predicted, the light emitting devices 11 to 19 are used. A light emission control program for causing the vehicle C to emit light, a vehicle-to-vehicle communication program capable of receiving information on the position and traveling state of the other vehicle Ca by communicating with the other vehicle Ca, and until a collision of the vehicle C occurs after a collision of the vehicle C is predicted. A series of collision warning programs having a collision remaining period detection program for detecting a remaining collision period and a driving skill detection program capable of detecting the driving skill of the driver of the own vehicle C and the other vehicle Ca are stored.

  Next, with respect to the collision warning process executed by the C / U 25 based on the program, the flowcharts of FIGS. 4 to 8 (Si (i = 1, 2, 3,... In the figure indicate each step)). Based on this, description will be made with reference to FIGS. 9 to 12 as appropriate.

  This collision alarm process is started when an ignition switch (not shown) is turned on, and is ended when the ignition switch is turned off. As shown in FIG. 4, when the collision warning process is started, after various initial settings are made, various signals from the sensors / communication devices 30 to 39 are read (S1). S2) is executed.

  As shown in FIG. 8, in the collision prediction determination of S2, for example, a collision prediction determination map is selected (S2-1), and the image information obtained from the cameras 32-35 and the collision prediction determination selected in S2-1. A collision prediction is determined based on the map (S2-2). In the collision prediction determination map, threshold values relating to the relative position, relative speed, and relative movement direction of the host vehicle C with respect to the collision object are set, and the collision prediction is determined based on the image information from the cameras 32 to 35. The relative position, relative speed, and relative movement direction of the vehicle C with respect to the predicted object are calculated, and the relative position, relative speed, relative movement direction, and the threshold value of the collision prediction determination map are compared.

  Here, when the driver carries an IC card (not shown) storing the driving skill, when the information of the driving skill is read and detected by the IC card reader 38, the collision prediction is determined. Then, the determination level for determining the prediction of the collision of the vehicle C is changed based on the detected driving skill. For example, as shown in FIG. 9, the driving skill is divided into five stages (A1 to A5 and A5 are the highest), and five types of collision prediction determination maps (M1 to M5) corresponding to these driving skills are set, and S2 In the selection of the -1 collision prediction determination map, a collision prediction determination map corresponding to the driving skill is selected, and thereby the collision prediction is delayed as the driving skill increases. When the driving skill cannot be detected, a standard collision prediction determination map (M3) is selected.

  Next, after S2-2, when there is inter-vehicle communication with another vehicle Ca existing around the host vehicle C (2-2; Yes), the position of the other vehicle Ca and the traveling state (vehicle speed, traveling direction) When the information is received, information on the position and traveling state (vehicle speed, traveling direction) obtained from the GPS antenna 37, the vehicle speed sensor 30, and the yaw rate sensor 31 of the host vehicle C, and the other vehicle Ca received from the other vehicle Ca. Judgment of collision prediction is performed based on the information of the position and traveling state and the collision prediction determination map selected in S2-1 (S2-4).

  This collision prediction is determined by calculating the relative position, relative speed, and relative movement direction of the own vehicle C with respect to the other vehicle Ca based on the information on the position and traveling state of the own vehicle C and the other vehicle Ca. The relative position, the relative speed, the relative movement direction, and the threshold value of the collision prediction determination map are compared. Here, in the inter-vehicle communication, when the information on the driving skill of the driver of the other vehicle Ca is received, in the collision prediction determination, the vehicle is determined based on the driving skills of the drivers of both the own vehicle C and the other vehicle Ca. The determination level for determining the prediction of C collision is changed.

  For example, as shown in FIG. 10, the driving skill of the driver of the other vehicle Ca is also divided into five stages (B1 to B5 and B5 are the highest), and five types of collision prediction determination maps (M1 to M1) corresponding to these driving skills. M5) is set. In the selection of the collision prediction determination map in S2-1, basically, the collision prediction determination map corresponding to the lower driving skill of the both driving skills is selected, but the higher one is selected depending on the situation. A collision prediction determination map corresponding to the driving skill or the average driving skill of both driving skills is selected. In the other vehicle Ca, the position and traveling state of the other vehicle Ca and the driving skill of the driver of the other vehicle Ca are obtained in the same manner as the own vehicle C.

  As shown in FIG. 4, after the collision prediction determination in S2, if no collision is predicted (S3; No), the process returns to S1, and if a collision is predicted (S3; Yes), the collision direction determination (S4) is performed. This is executed, and the collision direction of the vehicle C is determined and predicted. In this collision direction determination, one of the 12 collision directions shown in FIG. 11 is selected based on the information obtained in S2-2 or S2-4, and the collision direction is selected based on the collision direction. The light emitting devices 11 to 19 that can report the light are emitted.

  More specifically, as shown in FIG. 4 and FIG. 5, when the collision direction is forward (S5; Yes), the front window light emitting device 11 emits light (S11; Yes) when it is in the front center (S10; Yes). In the case of diagonally forward right (S12; Yes), the front window light emitting device 11 and the right front side window light emitting device 13 emit light (S13). In the case of diagonally left forward (S12; No), the front window light emitting device 11 and the left front side. The window light emitting device 12 emits light (S14).

  As shown in FIG. 4 and FIG. 6, when the collision direction is lateral (S6; Yes), and when the collision direction is the center on the right side (S20; Yes), both the right and left side window light emitting devices 13 and 15 emit light. (S21) When the vehicle is near the front right side (S22; Yes), the right front side window light emitting device 13 emits light (S23), and when it is near the rear side right (S24; Yes), the right rear side window light emitting device 15 emits light. In the case of the left lateral center (S26; Yes), both the left and right side window light emitting devices 12 and 14 emit light (S27), and in the case of the left lateral front side (S28; Yes), the left front side window When the light emitting device 12 emits light (S29) and is closer to the left lateral rear (S28; No), the left rear side window light emitting device 14 emits light (S30).

  As shown in FIGS. 4 and 7, when the collision direction is backward (S6; No), and when it is in the rear center (S40; Yes), the rear window light emitting device 16 and the room mirror light emitting device 17 emit light (S41, S42), in the case of diagonally right rear (S43; Yes), the rear window light emitting device 16, the right rear side window light emitting device 15, the room mirror light emitting device 17, and the right side mirror light emitting device 19 emit light (S44, S45), and the left In the case of diagonally rearward (S43; No), the rear window light emitting device 16, the left rear side window light emitting device 14, the room mirror light emitting device 17, and the left side mirror light emitting device 18 emit light (S46, S47).

  As shown in FIG. 4, after light emission of the light emitting devices 11 to 19, the process returns to S <b> 7, where it is determined whether or not the remaining collision period T is equal to or shorter than the predetermined period Tc (S <b> 7). ; Yes), all the light emitting devices 11-19 are turned on (S7, S8), and the process returns. When the collision remaining period T is longer than the predetermined period Tc (S7; No), the process returns to S1.

  Here, the collision margin period T is the time from the present time until the actual collision occurs, and is calculated based on the information obtained in S2-2 or S2-4. The predetermined period Tc is set based on the driving skill of the driver of the host vehicle C, and further, the driving skill of the driver of the other vehicle Ca. Specifically, the predetermined period Tc is shorter as the driving skill is higher. Is set to be

  FIGS. 12A and 12B illustrate the operation of the vehicle collision warning device W, taking as an example a case where another vehicle Ca may collide with the host vehicle C. As shown in FIG. 12A, when another vehicle Ca approaches the host vehicle C from behind and a collision is predicted in the host vehicle C, the rear window light emitting device 13 and the room mirror light emitting device 17 emit light. As shown in FIG. 12-2, when the other vehicle Ca approaches the host vehicle C and the remaining collision period T becomes equal to or shorter than the predetermined period Tc in the host vehicle C, all the light emitting devices 11 to 19 are connected. Emits light.

  According to the vehicle collision warning device W, the light emitting devices 11 to 19 are provided in the windows 1 to 6, the room mirror 7 and the side mirrors 8 and 9 of the vehicle C, respectively, and the light emitting means 11 to 19 emit light to enter the vehicle. Further, the light emitting devices 11 to 16 provided in the windows 1 to 6 emit light, so that the light emitting devices 11 to 16 emit light, and when the vehicle C is predicted to collide, the light emitting devices 11 to 19 emit light. As a result, the passengers of the host vehicle C and the other vehicle Ca can instantly and reliably intuitively recognize the warning of the collision prediction of the vehicle C (the possibility of a collision).

  In addition, the collision direction of the vehicle C is determined and predicted, and based on the collision direction, the light emitting devices 11 to 19 that can notify the collision direction are caused to emit light. It can be surely made to recognize intuitively. Accordingly, the cognitive ability of the occupant to recognize the warning of collision prediction can be enhanced not only for the driver but also for the passengers in the passenger seat and the rear seat. In addition, it can contribute to improving the situation before the collision of the vehicle and the occupant.

  Since the light emitting devices 11 to 19 are provided on the peripheral portions of the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9, respectively, the visibility of the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9 is ensured. Thus, the light-emitting devices 11 to 19 can be provided so that the passenger can recognize the vehicle collision prediction warning instantaneously and surely intuitively.

  It is possible to receive information on the position and traveling state (vehicle speed, traveling direction) of the other vehicle Ca by communicating with the other vehicle Ca, and information on the position and traveling state of the host vehicle C and the received position and traveling state of the other vehicle Ca. Since the collision with the other vehicle Ca is predicted based on the information, the collision with the other vehicle Ca can be predicted with high accuracy, and the collision with the other vehicle Ca hidden in the building or the like can be predicted with certainty.

  When the remaining collision period T from when the collision of the vehicle C is predicted until the collision of the vehicle C occurs is detected, and the remaining collision period T becomes equal to or shorter than the predetermined period Tc, the light emitting portions of the light emitting devices 11 to 19 Is changed to all the light emitting devices 11 to 19, it is possible to reliably notify the occupant that the remaining margin period T has been shortened.

  Since the driving skill of the driver of the own vehicle C and the other vehicle Ca can be detected and the determination level (collision prediction determination map) for determining the prediction of the collision of the vehicle C is changed based on the driving skill, the driver The collision prediction of the vehicle C can be determined at an appropriate determination level corresponding to the driving skill.

  Since the light emitting devices 11 to 19 are made of EL sheets, the light emitting devices 11 to 19 are securely attached to the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9, and the windows 1 to 6 and the room mirror 7 are attached. , 9 can be provided without interfering with the functions of.

Next, a modified form of the embodiment will be described.
1] In order to predict a collision of the vehicle C, a laser radar sensor, a millimeter wave radar sensor, and a microwave radar sensor are provided in addition to the cameras 32 to 35, and the collision of the vehicle C is based on signals from these radar sensors. May be predicted. In addition, various techniques for predicting a collision of the vehicle C can be applied.

2] A light emitting device may be provided in at least one of the windows 1 to 6, the room mirror 7, and the side mirrors 8 and 9. That is, a part of the light emitting devices 11 to 19 of the embodiment may be omitted.
3] You may provide a light-emitting device in one part or all parts other than the peripheral part of the windows 1-6, the room mirror 7, and the side mirrors 8 and 9. FIG.

4] The light emitting device may simply emit light when a collision is predicted without determining the collision direction.
5] Collision prediction by vehicle-to-vehicle communication (S2-3 and S2-4 in FIG. 8), light emission of all light emitting devices 11-19 when the remaining collision period is equal to or shorter than a predetermined period (S7 to S9 in FIG. 4), At least one of the change of the collision prediction level based on the driving skill can be omitted.
6] As the light emitting devices 11 to 19, light emitting devices other than the EL sheet (for example, LED, LCD, lamp group, etc.) can be applied.

7] When the detected collision allowance period T becomes equal to or shorter than the predetermined period Tc, the light emission part and / or the light emission luminance and / or the light emission mode of the light emitting devices 11 to 19 may be changed.
8] In the case where a seat belt device and a seat belt wearing sensor for detecting whether or not the seat belt is worn are provided, the C / U 25 receives a signal from the seat belt wearing sensor and determines whether or not the seat belt is worn. The light emission mode and / or the light emission brightness and / or the light emission part of the light emitting devices 11 to 19 may be changed, or the determination level for determining the prediction of the collision of the vehicle C may be changed.

9] A sensor (for example, an in-vehicle camera) for detecting the seating position and seating posture of the occupant is provided, and the C / U 25 receives a signal from the sensor and determines the light emitting devices 11 to 11 depending on the seating position and seating posture of the occupant The 19 light emission modes and / or the light emission luminance and / or the light emission site may be changed, or the determination level for determining the prediction of the collision of the vehicle C may be changed.
10] The C / U 25 may change the light emission brightness or the light emission mode of the light emitting devices 11 to 19 according to the illuminance detected by the illuminance detection sensor 39. Thereby, the light-emitting devices 11 to 19 are caused to emit light with an appropriate light emission luminance or light-emission mode according to the external illuminance, and light emission of the light-emitting devices 11 to 19 can be surely visually recognized even in the daytime.

12] For example, the light emitting mode of the light emitting devices 11 to 19 may be set to any one of lighting, blinking, and dynamic lighting.
13] When the side windows 2 to 5 are open, if the light emitting devices 12 to 15 provided in the side windows 2 to 5 are caused to emit light and cannot be notified, the other light emitting devices are caused to emit light and the collision direction May be notified.
14] The remaining collision distance from when the collision of the vehicle C is predicted until the collision of the vehicle C is detected, and when the remaining collision distance is equal to or less than a predetermined distance, The light emitting part may be changed.

15] As a warning of collision prediction, it may be used in combination with the light emission of the light emitting devices 11 to 19 to notify the collision prediction by a buzzer, voice or the like.
16] The driver's driving skill may be detected not by reading the IC card information by the IC card reader 38 but by inputting it manually.
17] The determination level for determining the collision prediction of the vehicle C may be arbitrarily changed by a driver (occupant) manually.

18] The driver (occupant) may determine whether or not to activate the vehicle collision warning device W by manual input.
19] It should be noted that various modifications other than those disclosed above can be added without departing from the spirit of the present invention, and the present invention can be applied to various vehicles such as automobiles.

It is a top view of a vehicle. 1 is a schematic plan view including a vehicle sensor and communication equipment. It is a block diagram of the collision alarm device for vehicles. It is a flowchart of a part of collision warning process. It is a flowchart of a part of collision warning process. It is a flowchart of a part of collision warning process. It is a flowchart of a part of collision warning process. It is a flowchart of collision prediction determination. It is a graph which shows the driving skill of the driver | operator of the own vehicle, and a collision prediction determination map. It is a chart which shows the driving skill of a driver of other vehicles, and a collision prediction judging map. It is a top view which shows the collision direction into which the vehicle divided. It is explanatory drawing in the collision prediction early stage of a vehicle rear collision. It is explanatory drawing in the late stage of the collision prediction of a vehicle rear collision.

Explanation of symbols

C Vehicle W Vehicle collision alarm device 1-6 Window 7 Room mirror 8, 9 Side mirror 11-19 Light emitting device 25 Control unit 30 Vehicle speed sensor 31 Yaw rate sensor 32-35 Camera 36 Inter-vehicle communication antenna 37 GPS antenna 38 IC card reader 39 Illuminance sensor

Claims (10)

In a vehicle collision warning device that predicts and warns of a vehicle collision,
A collision prediction means for predicting a collision of the vehicle;
A light emitting means provided in at least one of the window, the rearview mirror, and the side mirror of the vehicle, and a light emitting means capable of informing at least one of the inside and the outside of the vehicle by emitting light;
A light emission control means for causing the light emission means to emit light when a collision of a vehicle is predicted by the collision prediction means;
A vehicle collision notification device.   2. The vehicle collision warning device according to claim 1, wherein the light emitting means is provided on each of peripheral portions of a window, a room mirror, and a side mirror. The light emitting means is provided in each of a front window, a rear window, and left and right side windows,
The collision prediction means includes a collision direction determination means for determining and predicting the collision direction of the vehicle,
2. The vehicle collision alarm device according to claim 1, wherein the light emission control unit causes the light emission unit of a part capable of reporting the collision direction to emit light based on the collision direction determined by the collision direction determination unit. . The light emitting means is provided in each of the room mirror and the left and right side mirrors,
The collision prediction means includes a collision direction determination means for determining and predicting the collision direction of the vehicle,
2. The vehicle collision alarm device according to claim 1, wherein the light emission control unit causes the light emission unit of a part capable of reporting the collision direction to emit light based on the collision direction determined by the collision direction determination unit. . A vehicle-to-vehicle communication means capable of communicating with other vehicles and receiving information on the position and running state of the other vehicles,
The collision prediction means predicts a collision with another vehicle based on information on the position and running state of the host vehicle and information on the position and running state of the other vehicle received by the inter-vehicle communication means. Item 6. The vehicle collision alarm device according to Item 4 or 5. With illuminance detection means for detecting the illuminance of external light,
2. The vehicle collision alarm device according to claim 1, wherein the light emission control unit changes a light emission luminance or a light emission mode of the light emission unit according to the illuminance detected by the illuminance detection unit. A collision excess period detecting means for detecting a collision excess period from when a collision of a vehicle is predicted by the collision prediction means until a collision of the vehicle occurs,
2. The light emission control unit according to claim 1, wherein the light emission control unit changes the light emission mode or the light emission part when the collision remaining period detected by the collision remaining period detection unit becomes a predetermined period or less. Vehicle collision warning device. Driving skill detection means for detecting the driving skill of at least one driver of the own vehicle and the other vehicle,
The vehicle collision warning device according to claim 1, wherein the collision prediction unit changes a determination level for determining prediction of a vehicle collision based on the driving skill detected by the driving skill detection unit.   2. The vehicle collision alarm device according to claim 1, wherein the light emission control unit causes the light emission unit to emit light in any one of lighting, blinking, and dynamic lighting. 2. The vehicle collision warning device according to claim 1, wherein the light emitting means comprises an electroluminescence sheet.

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