WO2023214532A1 - Dispositif d'avertissement de véhicule - Google Patents

Dispositif d'avertissement de véhicule Download PDF

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Publication number
WO2023214532A1
WO2023214532A1 PCT/JP2023/016630 JP2023016630W WO2023214532A1 WO 2023214532 A1 WO2023214532 A1 WO 2023214532A1 JP 2023016630 W JP2023016630 W JP 2023016630W WO 2023214532 A1 WO2023214532 A1 WO 2023214532A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
obstacle
road surface
warning device
drawing pattern
Prior art date
Application number
PCT/JP2023/016630
Other languages
English (en)
Japanese (ja)
Inventor
裕介 仲田
Original Assignee
株式会社小糸製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Publication of WO2023214532A1 publication Critical patent/WO2023214532A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems

Definitions

  • the present disclosure relates to a vehicle warning device that warns a driver of the approach of an obstacle or the like.
  • Patent Document 1 proposes a driving support device that displays a drawing pattern on a road surface such as a point where a car is traveling, and enables a driver to appropriately drive his/her own vehicle.
  • an object of the present disclosure is to provide a vehicle warning device that projects a drawn pattern to warn the driver when an obstacle exists in the direction of travel of the vehicle.
  • a vehicle warning device of the present disclosure includes a road surface drawing light that projects a drawing pattern indicating a warning to the driver onto the road surface, and an obstacle sensor that detects obstacles around the vehicle.
  • the road surface drawing light is characterized in that when an obstacle sensor detects an obstacle, a drawing pattern is projected from the distal side of the vehicle toward the proximal side of the vehicle.
  • the drawing pattern may have a configuration in which the projected image increases from the distal side of the vehicle toward the proximal side, or a configuration in which the position of the projected image moves from the distal side toward the proximal side of the vehicle. In this case, by varying the drawing pattern, it is possible to effectively appeal to the driver's vision.
  • It can be configured to include a plurality of road surface drawing lights and to select the road surface drawing light to be projected based on the relative position of the obstacle with respect to the vehicle. In this case, the driver can be notified of the location of the obstacle in more detail.
  • a vehicle speed sensor for calculating the time until the obstacle collides with the vehicle based on the detection result of the obstacle sensor and the measurement result of the vehicle speed sensor, and the drawing is performed based on the time until the obstacle collides with the vehicle.
  • a drawing pattern that goes from the distal side to the proximal side of the vehicle is projected instead of the conventional drawing pattern that goes from the proximal side to the distal side of the vehicle. This has the effect that it is possible to easily distinguish between the two, and quickly notice that an obstacle is approaching.
  • FIG. 1 is a schematic diagram showing a state in which a vehicle warning device according to an embodiment of the present disclosure is used.
  • FIG. 2 is a block diagram showing a system configuration of a vehicle warning device.
  • FIG. 3 is an overhead view showing the positional relationship between an obstacle and a vehicle.
  • FIG. 3 is a schematic diagram showing an illumination pattern.
  • FIG. 3 is a schematic diagram showing an illumination pattern. It is a schematic diagram which shows the modification of an illumination pattern. It is a schematic diagram which shows the modification of an illumination pattern.
  • the vehicle warning device 1 shown in FIGS. 1 and 2 includes a pair of left and right road surface drawing lights 2 (2R, 2L) that project a drawing pattern P indicating a warning to the driver onto the road surface, and a pair of road surface drawing lights 2 (2R, 2L) that project a drawing pattern P that indicates a warning to the driver, and an obstacle X in the vicinity of a vehicle V. It includes an obstacle sensor 3 for detecting an obstacle, a vehicle speed sensor 4, and a control unit 5 for controlling turning on and off of a plurality of LEDs 21 included in the road surface drawing light 2, respectively.
  • the road surface drawing light 2 includes a light body 24 attached to the vehicle body, a transparent cover 25 made of a transparent resin material, and a light chamber 26 formed inside both.
  • the light chamber 26 includes LEDs 21 (21-1, 21-2, 21-3) that are light sources, a circuit board 22 on which the LEDs 21 are mounted, a projection lens 23 that projects the light L of the LEDs 21 onto the road surface, and internal components.
  • An extension (not shown) or the like is provided to shield the structure from the outside.
  • the road surface drawing light 2 can also be mounted in the light chamber of another light device such as a vehicle headlamp.
  • the control unit 5 can also be mounted on the road surface drawing light 2.
  • the road surface drawing light 2 as a side turn signal lamp by setting the color of the LED 21 to amber color.
  • the control unit 5 lights up the LED 21 in the order of "LED 21-1, LED 21-2, LED 21-3", and when used as a side turn signal lamp, They light up in the order of "LED21-3, LED21-2, LED21-1", that is, in the reverse order when used as the vehicle warning device 1.
  • the obstacle sensor 3 detects an obstacle X existing around the vehicle V, particularly in the direction of travel of the vehicle V, and measures the distance d between the vehicle V and the obstacle X.
  • a sensor capable of measuring distance can be selected, such as LiDAR, millimeter wave radar, ultrasonic sensor, stereo camera, acceleration/gyro sensor, or the like.
  • the obstacle X includes a stopped vehicle, a person, other objects, and the like.
  • the control unit 5 includes a TTC calculation unit 51 that calculates the time until the vehicle V collides with the obstacle X (TTC(t): Time To Collision).
  • the TTC calculation unit 51 calculates TTC(t) based on the measured value of the obstacle sensor 3 (distance d between the vehicle V and the obstacle X) and the vehicle speed v measured by the vehicle speed sensor 4.
  • the control unit 5 controls the lighting of the road surface drawing light 2 based on the TTC(t), and through this control, the road surface drawing light 2 projects a predetermined drawing pattern P onto the road surface according to the TTC(t). It is also possible for the control unit 5 to control the lighting of the LEDs 21 based on the distance d, and for the road surface drawing lamp 2 to project a predetermined drawing pattern P on the road surface according to the distance d.
  • the control unit 5 performs control to turn on the LEDs 21 all at once and then turn them off all at once in a cycle T1. Further, the control unit 5 performs so-called gradual lighting/extinguishing control, in which the LEDs 21 are turned on so as to gradually become brighter when the lights are turned on all at once, and the LEDs 21 are turned off so that they become gradually darker when the lights are turned off all at once.
  • the road surface drawing light 2 projects a drawing pattern P that increases the projection image G from the distal side of the vehicle V toward the proximal side at a period T2. Specifically, first, a drawing pattern P consisting of the projection image G1 is projected, a drawing pattern P consisting of the projection images G1 and G2 is projected, a drawing pattern P consisting of the projection images G1, G2, and G3 is projected, and finally Then, the drawing pattern P consisting of the projected images G1, G2, and G3 is turned off.
  • control unit 5 performs control in which the LEDs 21 are turned on one by one, and after all the LEDs 21 are turned on, the LEDs 21 are turned off all at once in a cycle T2.
  • the control unit 5 performs control to turn on the LEDs 21 all at once and then turn them off all at once at a cycle T3. Further, the control unit 5 performs so-called flashing lighting control in which the lights are repeatedly turned on and off all at once.
  • the road surface drawing light 2 to be projected can be selected based on the relative position of the obstacle X' with respect to the vehicle V. That is, when the obstacle X' is detected on the side in the traveling direction of the vehicle V, the road surface drawing light 2 can select to project the projection image G only on the side where the obstacle X' is detected.
  • “To the side of the traveling direction of the vehicle V” means, for example, if the obstacle X' is detected in the left lane or the right lane, or if it is detected outside the vehicle width W, This may be the case where the object is detected at a position where it does not intersect with the object X'. In the example of FIGS.
  • the road surface drawing light 2 has a drawing pattern P that moves the position of the projected image G from the distal side to the proximal side of the vehicle V. is projected at a predetermined period T2. Specifically, first, a drawing pattern P consisting of the projection image G1 is projected, a drawing pattern P consisting of the projection image G2 is projected, a drawing pattern P consisting of the projection image G3 is projected, and the projection image G3 is turned off. At this time, the control unit 5 performs control to turn on and off the LEDs 21 one by one at a cycle T2.
  • the drawing pattern P projects from the distal to the proximal of the vehicle V. This allows the driver to intuitively sense that a situation different from normal driving assistance has occurred, and quickly warns the driver of the approach of obstacle X. Furthermore, since different drawing patterns P are projected depending on the TTC(t), it is possible to notify the driver of the risk of collision. Furthermore, when the projection image G is projected only on the side where the obstacle X' is detected, it is possible to warn the driver of the position of the obstacle X' in more detail.
  • Vehicle warning device 2 Road surface drawing light 3 Obstacle sensor 4 Vehicle speed sensor 5 Control unit 21 LED 22 Circuit board 23 Projection lens 24 Light body 25 Transparent cover 26 Light chamber 51 TTC calculation unit V Vehicle X Obstacle P Drawing pattern G Projected image v Vehicle speed d Distance t TTC T period

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Traffic Control Systems (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente divulgation concerne un dispositif d'avertissement de véhicule qui avertit un conducteur lorsqu'il y a un obstacle dans la direction de déplacement du véhicule.　Un dispositif d'avertissement de véhicule (1) selon la présente divulgation comprend : une lumière de dessin de surface de route (2) pour projeter un motif de dessin (P) sur une surface de route ; un capteur d'obstacle (3) pour détecter un obstacle (X) à proximité d'un véhicule (V) ; un capteur de vitesse de véhicule (4) ; et une unité de commande (5) pour commander la mise en marche/l'arrêt de chacun d'une pluralité de DEL (21) de la lumière de dessin de surface de route (2). L'unité de commande (5) calcule un temps (t) jusqu'à une collision sur la base d'une distance (d) jusqu'à l'obstacle (X) mesurée par le capteur d'obstacle (3) et d'une vitesse de véhicule (v) mesurée par le capteur de vitesse de véhicule (4). La lumière de dessin de surface de route (2) projette un motif de dessin prédéterminé (P) sur une surface de route sur la base du temps (t) et avertit un conducteur.
PCT/JP2023/016630 2022-05-02 2023-04-27 Dispositif d'avertissement de véhicule WO2023214532A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022075850 2022-05-02
JP2022-075850 2022-05-02

Publications (1)

Publication Number Publication Date
WO2023214532A1 true WO2023214532A1 (fr) 2023-11-09

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ID=88646449

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/016630 WO2023214532A1 (fr) 2022-05-02 2023-04-27 Dispositif d'avertissement de véhicule

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020067113A1 (fr) * 2018-09-25 2020-04-02 株式会社小糸製作所 Système de phare et phare de véhicule
WO2020085505A1 (fr) * 2018-10-26 2020-04-30 株式会社小糸製作所 Dispositif de tracé de surface routière pour véhicule
WO2020218498A1 (fr) * 2019-04-25 2020-10-29 株式会社小糸製作所 Système de détection et véhicule

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020067113A1 (fr) * 2018-09-25 2020-04-02 株式会社小糸製作所 Système de phare et phare de véhicule
WO2020085505A1 (fr) * 2018-10-26 2020-04-30 株式会社小糸製作所 Dispositif de tracé de surface routière pour véhicule
WO2020218498A1 (fr) * 2019-04-25 2020-10-29 株式会社小糸製作所 Système de détection et véhicule

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