Vehicle drawing device and vehicle drawing method

Abstract

To provide a vehicular drawing device that enables a marker drawn on a road surface to transmit information more excellently.SOLUTION: A vehicular drawing device, mounted on a vehicle 200, includes: a light radiation device that can draw marks 201R and 202L respectively on two regions separated in a vehicle width direction of the vehicle 200 on a road surface in a travelling direction of the vehicle 200 by light radiation; and a controller, connected to the light radiation device, which controls an operation of the light radiation device. The controller controls the light irradiation device so that the mark 202L in a first shape is drawn on the first region arranged at a side corresponding to a travelling road change direction of the vehicle 200 of the two regions and the mark 201R in a second shape different from the first shape is drawn on the second region different from the first region of the two regions.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a vehicle drawing device and a vehicle drawing method. [Background technology]

[0002] JP 2016-193689 A (Patent Document 1) describes a drawing device for a vehicle that starts drawing a marker on the road surface in the traveling direction of the vehicle when the turn signal lamp is on, and ends drawing the marker when the turn signal lamp is off. The drawn marker is an arrow, figure, or curve that corresponds to the traveling direction indicated by the turn signal lamp. However, although the shape and position of the marker drawn by this vehicle drawing device are easy to grasp in the vicinity, it is difficult to recognize the shape and position when observed, for example, from a relatively distant position to the side, and it is thought that there are cases in which the originally intended information transmission cannot be performed well (for example, the drawn shape appears crushed and it is unclear what the shape is, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2016-193689 A Summary of the Invention [Problem to be solved by the invention]

[0004] An object of a specific embodiment of the present invention is to improve information transmission by markers drawn on a road surface. [Means for solving the problem]

[0005] Vehicle drawing according to one aspect of the present invention method teeth, A method for irradiating light using a vehicle drawing device including a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light in each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle, and a controller connected to the light irradiation device and controlling an operation of the light irradiation device, the controller controls so that, when a turn signal switch of the vehicle is turned on, the mark is drawn in a first form in a first region of the two regions that is located on a side corresponding to the turn signal switch, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first and second forms have any one of the following relationships (a) to (d): (a) the first form is larger than the second form in at least one of hue, illuminance, saturation, brightness, area, and movement; (b) the first form is a form in which the mark is drawn in a first hue, and the second form is a form in which the mark is drawn in a second hue different from the first hue; (c) the first form is a form in which the mark is drawn so as to flash, and the second form is a form in which the mark is drawn continuously; (d) the first form is a form in which the mark is drawn such that a first hue and a second hue different from the first hue appear alternately, and the second form is a form in which the mark is drawn in the second hue; The marks are drawn so as to satisfy the following relationship: A drawing method for vehicles. Another aspect of the present invention is a vehicle rendering device configured to be able to execute the above method.

[0006] According to the above configuration, information can be transmitted more effectively by the markers drawn on the road surface. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram showing a configuration of a vehicle drawing device according to an embodiment. [Diagram 2] FIG. 2 is a schematic front view showing an example of the configuration of each road surface drawing lamp unit. [Diagram 3] 3(A) to 3(C) are diagrams for explaining a method for drawing a mark by the drawing device for a vehicle of this embodiment. [Figure 4] FIG. 4 is a flowchart showing an operation procedure of the controller of the vehicle drawing device according to an embodiment. [Diagram 5] FIG. 5 is a diagram for explaining a preferred embodiment of the drawing form of each mark and the mutual distance between the marks. [Figure 6] FIG. 6 is a diagram showing the positional relationship between each mark and the viewpoint when viewing each mark from the side. [Figure 7] FIG. 7 is a diagram showing a method of drawing a mark according to another embodiment. [Figure 8] FIG. 8 is a diagram showing a method of drawing a mark according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] 1 is a diagram showing the configuration of a drawing device for a vehicle according to an embodiment. The illustrated drawing device for a vehicle 100 includes a controller 1, a map data storage unit 2, a GPS sensor 3, and a pair of lamp units 4L and 4R for drawing a road surface. The controller 1 is connected to each of the map data storage unit 2, the GPS sensor 3, and the pair of lamp units 4L and 4R for drawing a road surface. In this specification, the lamp unit 4L for drawing a road surface and the lamp unit 4R for drawing a road surface correspond to the "light irradiation device."

[0009] The vehicle drawing device 100 of this embodiment is mounted on a vehicle and draws a mark by irradiating light onto the road surface in the traveling direction (for example, forward) of the vehicle. The "mark" here refers to an object that is formed on the road surface by irradiating light and is visible and distinguishable from the surrounding road surface, and may be, for example, a figure such as a rectangle, a circle, or an arrow, or may be various characters or symbols.

[0010] The controller 1 controls the light irradiation operation of each of the road surface drawing lamp units 4L, 4R. The controller 1 can be configured using a computer system equipped with, for example, a processor (CPU: Central Processing Unit), a storage device such as a ROM (Read Only Memory), a RAM (Random Access Memory), a flash memory, an input / output interface, and the like. The controller 1 of this embodiment is capable of performing a predetermined function by the CPU reading and executing a program previously stored in the storage device (or ROM). The controller 1 includes a drawing content setting unit 11 and a control signal generating unit 12 as functional blocks realized by executing the program.

[0011] The controller 1 is connected to a turn signal switch 101 that is operated by the driver to activate a turn signal unit (directional indicator) 102 when the vehicle turns right or left. The turn signal switch 101 is installed in a position near the driver's seat of the vehicle where it can be operated by the driver. The turn signal unit 102 is connected to the turn signal switch 101 and includes lamps installed at predetermined positions on the left and right sides of the front of the vehicle, and either the left or right lamp (or both) flashes depending on the operation status of the turn signal switch 101.

[0012] The map data storage unit 2 stores map data including information about roads (locations, road types, traffic divisions, traffic rules, etc.) and information about various buildings and land (locations, types, etc.) in a data format readable by the controller 1. The map data storage unit 2 can be configured using a non-volatile storage medium such as a hard disk drive or a flash memory.

[0013] The GPS sensor 3 is a sensor for detecting a position using the Global Positioning System, and is mounted on the vehicle to detect the current position.

[0014] In addition, if another system (such as a car navigation system) including components equivalent to the map data storage unit 2 and the GPS sensor 3 is installed in the vehicle, the functions of the map data storage unit 2 and the GPS sensor 3 may be replaced by that system.

[0015] The drawing content setting unit 11 sets the state of the light emitted by each road surface drawing lamp unit 4L, 4R according to the operation status of the turn signal switch 101 and the road conditions determined based on the map data read out from the map data storage unit 2 and the current position of the vehicle detected by the GPS sensor 3.

[0016] The control signal generating unit 12 generates a control signal for causing each of the road surface drawing lamp units 4L, 4R to form illumination light according to the illumination light state set by the illumination state setting unit 11, and supplies the control signal to each of the road surface drawing lamp units 4L, 4R.

[0017] A pair of road marking lamp units 4L, 4R are mounted at predetermined positions on the left and right sides of the front of the vehicle, and operate in response to control signals given from the controller 1 to draw marks on the road surface in front of the vehicle by irradiating light.

[0018] Various known configurations can be adopted for each of the road surface drawing lamp units 4L and 4R. For example, a lamp unit configured by combining a light source bulb with a reflector or a shielding plate may be used. A lamp unit may be used in which light emitting elements such as LEDs (Light Emitting Diodes) are arranged in one or two directions, and the lighting state of each light emitting element can be individually controlled. A lamp unit may be used that includes a light source and a liquid crystal element, and that can individually control the light transmission state of each pixel of the liquid crystal element. A lamp unit may be used that includes a light emitting element such as a laser diode, and a scanning element such as a mirror device that scans the light emitted from the light emitting element, and that can control the timing of turning on and off the light emitting element and the scanning timing by the scanning element. In any configuration, it is preferable that light irradiation can be performed with two or more different hues. In this case, two or more types of lamp units with different light emitting colors such as light source bulbs and light emitting elements may be used by switching between them, or a light emitting element that can switch between two or more hues may be used. When using a liquid crystal element, possible configurations include providing two types of light sources that direct light to the liquid crystal element, providing a light source that can switch the hue, or providing a liquid crystal element that can switch the hue of the transmitted light.

[0019] FIG. 2 is a schematic front view showing an example of the configuration of each road surface drawing lamp unit. Each of the road surface drawing lamp units 4L and 4R in the example of the configuration shown in FIG. 2 includes two lamps 40 and 41, where the lamp 40 can form a white mark (second hue) and the lamp 41 can form an amber mark (first hue). Each lamp 40 can be configured to include, for example, a white light source, a shielding plate corresponding to the shape of the mark and arranged in front of the light source, a condensing lens arranged in front of the shielding plate, and a transparent housing that houses the light source, the shielding plate, and the condensing lens. Each lamp 41 can be configured to include, for example, a white light source, a shielding plate corresponding to the shape of the mark and arranged in front of the light source, a condensing lens arranged in front of the shielding plate, and a housing that houses the light source, the shielding plate, and the condensing lens and is colored amber.

[0020] 3A to 3C are diagrams for explaining a method for drawing a mark by the vehicle drawing device of this embodiment. Each diagram shows a schematic plan view of a mark drawing mode when the vehicle 200 approaches an intersection.

[0021] When the vehicle 200 approaches an intersection, the lamps 40 of the road surface drawing lamp units 4L and 4R are turned on as shown in FIG. 3(A), and white marks 201L and 201R are drawn on the road surface ahead of the vehicle 200. In detail, the mark 201L is drawn in the left area on the road surface by the light irradiation from the lamp 40 of the road surface drawing lamp unit 4L, and the mark 201R is drawn in the right area on the road surface by the light irradiation from the lamp 40 of the road surface drawing lamp unit 4R. The pair of marks 201L and 201R function as position marks for informing surrounding pedestrians and drivers of other vehicles of the presence of the vehicle and for informing the approximate vehicle width. That is, the drawing mode shown in FIG. 3(A) is an example in which marks are drawn in the same mode (second mode) in each of the two areas before the vehicle 200 changes course.

[0022] When the turn signal switch 101 of the vehicle 200 is operated, the turn signal unit 102 starts to flash (not shown), and in conjunction with this, an amber mark 202L is drawn and flashed in place of the mark 201L in the left side area, which is the area on the road surface on the side corresponding to the lane change direction (left direction in the illustrated example) of the vehicle 200, as shown in FIG. 3(B). At this time, the mark 201R is continuously drawn in the right side area on the road surface. Although not shown, when the lane change direction is to the right, an amber mark is drawn and flashed in place of the mark 201R, and the mark 201L is continuously drawn.

[0023] Also, during the off period of the mark 202L that is drawn and blinking, the mark 201L is drawn as shown in Fig. 3(C). Specifically, the mark 201L may be drawn continuously and the mark 202L may be drawn and blinked by overwriting it, or the on and off periods of the marks 201L and 202L may be provided complementary to each other. As a result, while the turn signal switch 101 is in an operation state corresponding to a left turn, a state in which the state shown in Fig. 3(B) and the state shown in Fig. 3(C) are repeated, that is, a state in which the mark 202L blinks in conjunction with the blinking of the turn signal unit 102 is maintained.

[0024] That is, the drawing modes shown in Fig. 3(B) and Fig. 3(C) are examples in which marks are drawn in different modes (first mode and second mode) in the region corresponding to the direction of lane change and the region opposite thereto as the vehicle 200 changes lane. Specifically, this is an example in which an amber mark is drawn to flash, and an example in which an amber mark and a white mark are drawn to appear alternately. Also, this is an example in which the lighting cycle of the amber mark and the lighting cycle during the flashing are synchronized with the lighting cycle of the turn signal unit 102.

[0025] Fig. 4 is a flowchart showing an operation procedure of an embodiment of the controller of the vehicle drawing device. Here, the explanation is based on the operation exemplified in Fig. 3(A) to Fig. 3(C) above. Note that the operation procedure shown in the flowchart here is an example, and the processing order of each step may be changed as long as no inconsistency occurs in the operation, and other processing not shown may be added.

[0026] Based on the map data read from the map data storage unit 2 and the current position of the vehicle detected by the GPS sensor 3, if the current position of the vehicle is near an intersection (step S11; YES), the drawing content setting unit 11 of the controller 1 sets the mark 201L, 201R to be drawn on the road surface as the drawing content. Based on the setting of the drawing content, the control signal generating unit 12 generates a control signal and outputs the control signal to each of the road surface drawing lamp units 4L, 4R, and the marks 201L, 201R as position marks are drawn on the left and right side areas of the road surface by each of the road surface drawing lamp units 4L, 4R (step S12). As shown in FIG. 3(A), the white marks 201L, 201R are drawn on the road surface ahead of the vehicle 200.

[0027] In step S11, "the vehicle's current position is near an intersection" can be defined as a state in which the distance between the intersection position specified by map data and the vehicle's current position is less than a predetermined distance (for example, less than 10 m).

[0028] While the blinker switch 101 is not on (indicating a right or left turn) (step S13; NO), the drawing content setting unit 11 returns to step S11 and executes subsequent control. For example, if the blinker switch is not on for some reason and the vehicle's current position is no longer near an intersection (step S11; NO), the drawing content setting unit 11 sets the turning off of the marks on both sides as the drawing content. Based on this drawing content setting, the control signal generating unit 12 generates a control signal and outputs the control signal to each of the road surface drawing lamp units 4L, 4R, and the drawing of the marks 201L, 201R is stopped by each of the road surface drawing lamp units 4L, 4R. That is, the marks on both sides are turned off (step S16). Then, the process returns to step S11.

[0029] When the turn signal switch 101 is turned on (step S13; YES), the drawing content setting unit 11 sets the drawing content to change the drawing mode of the mark on the side corresponding to the lane change direction and draw it on the road surface. Based on the setting of the drawing content, the control signal generating unit 12 generates a control signal and outputs the control signal to each of the road surface drawing lamp units 4L, 4R, and the mark on the road surface on the side corresponding to the lane change direction of each of the road surface drawing lamp units 4L, 4R is drawn so that it flashes in amber (step S14). Note that the other mark is kept continuously lit in white. For example, when the vehicle 200 turns left, as shown in Fig. 3(B) and Fig. 3(C), the drawing mode of the mark on the left side corresponding to the lane change direction on the road surface in front of the vehicle 200 is drawn in a mode in which the white mark 201L and the amber mark 202L are alternately repeated, and the right mark 201R is kept continuously lit.

[0030] The drawing content setting unit 11 continues the control of step S14 until the blinker switch 101 is turned off (a state in which neither a right nor left turn is indicated) (step S15; NO). When the blinker switch 101 is turned off (step S15; YES), the drawing content setting unit 11 returns to step S11. In this case, if the current position of the vehicle continues to be near the intersection, the drawing of the marks on both sides continues (steps S11 to S13), whereas if the current position of the vehicle is no longer immediately before the intersection, the marks on both sides are turned off (step S16), and then the process returns to step S11.

[0031] Fig. 5 is a diagram for explaining the preferred form of drawing each mark and the mutual distance. Here, the state of turning left similar to Fig. 3(B) above is shown. Next, the mutual distance between the first hue mark (202L in the illustrated example) and the second hue mark (201R in the illustrated example), specifically, the preferred value of the mutual distance L1 between the ends facing each other in a plan view, will be explained.

[0032] 6 is a diagram showing the positional relationship between each mark and a viewpoint when viewing each mark from the side. The illustrated viewpoint P is the viewpoint of a driver of another vehicle or a pedestrian on a road intersecting the road on which the vehicle 200 is traveling at an intersection, for example. The distance from the viewpoint P to the mark 201R that is relatively close to the viewpoint P is L2, and the distance between the marks 201R and 202L is L1. In this case, the inventor's verification has revealed that the minimum viewing angle at which the area between the two marks 201R and 202L can be viewed from the viewpoint P is 0.05° (3 minutes).

[0033] Consider the magnitude of the mutual distance L1 required to achieve this visual angle. For example, assume that the height (distance from the road surface) of the viewpoint P of the rider riding on the motorcycle is 1.5 m, and further assume that the length required for distance L2 is 26 m based on the braking distance of the motorcycle, etc. In this case, the mutual distance L1 required to obtain a visual angle of 0.05° is 0.41 m. In other words, if L1 is set to 0.41 m or more, the mutual area between the two marks 201R, 202L can be seen from the viewpoint P of the motorcycle.

[0034] Similarly, for example, the height (distance from the road surface) of the viewpoint P of a driver in a typical sedan-type four-wheeled vehicle is assumed to be 1.25 m, and the length required for distance L2 is assumed to be 50 m based on the braking distance of the four-wheeled vehicle. In this case, the mutual distance L1 required to obtain a visual angle of 0.05° is 1.84 m. In other words, if L1 is set to 1.84 m or more, the mutual area between the two marks 201R and 202L can be seen from the viewpoint P assuming a sedan-type four-wheeled vehicle.

[0035] By making the area between the two marks 201R and 202L visible, each mark can be more easily recognized independently even when observed from a relatively distant position on the side, and the visibility of each mark can be further improved, but making the area between the marks visible in this way is one of the preferable conditions and is not a must. Even if the area between the marks is not necessarily clear, it is sufficient as long as the two marks can be recognized as different.

[0036] Here, as illustrated in FIG. 5, the mark 202L on the left side corresponding to the lane change direction is a different hue from the mark 201R on the opposite right side. Specifically, the mark 202L is amber, and the mark 201R is white. In this embodiment, the marks 202L and 201R have different areas. Specifically, the mark 202L on the left side corresponding to the lane change direction is set to have a relatively larger area than the mark 201R on the opposite right side. Another difference is that the mark 202L on the left side corresponding to the lane change direction flashes, and the mark 201R on the opposite right side is continuously lit.

[0037] The mark corresponding to the lane change direction and the mark opposite thereto may have different shapes and illuminances. For example, in the illustrated example, both the marks 201R and 202L are square in plan view, but the mark 202L corresponding to the lane change direction may have other shapes (for example, triangle, circle, rectangle, etc.). Also, for example, the mark 202L corresponding to the lane change direction may have a higher illuminance than the mark 201R on the opposite side. Furthermore, either the mark 202L corresponding to the lane change direction or the mark 201R on the opposite side may have a movement. Furthermore, as a difference between the marks, a difference in physical quantity such as saturation, brightness, or illuminance may be used, or one of the marks may have a movement. The movement here refers to, for example, a mode in which the mark moves in one or two directions within a certain range on the road surface. For example, the mark 202L corresponding to the lane change direction may be drawn so that the light points move in the vehicle width direction (sequential lighting), and the other mark 201R may be drawn so that there is no movement.

[0038] 7, the mark 202L corresponding to the lane change direction may be drawn in a gradation state in which the illuminance is relatively higher toward the outside in the vehicle width direction and the illuminance is lower toward the inside. This makes it possible to increase the contrast between the mark 201R and the mark 202L when viewed from the side of the vehicle 200, and further improves the visibility of each mark.

[0039] Also, as illustrated in FIG. 8, when the road on which the vehicle 200 is traveling and the road to be entered intersect at an acute angle, the drawing position of the mark of the first hue (mark 202L in the illustrated example) may be changed to a position farther away from the vehicle according to the intersection angle θ of the two roads. Specifically, in the illustrated example, the drawing position of the mark 202L by the road surface drawing lamp unit 4L, which is farther away from the road to be entered, is shifted further forward. If the distance by which the mark 202L is shifted at this time is L3 and the vehicle width of the vehicle 200 is d, it can be expressed as L3=d / tan θ. Since the vehicle width d is a known value and the angle θ is obtained based on the map data, the distance L3 can be calculated according to this formula. When the drawing position of the mark is set variably in this way, for example, a mechanism for freely changing the optical axis up and down may be provided for the road surface drawing lamp units 4L and 4R shown in FIG. 2 described above. Alternatively, the mark drawing position can be variably set in the various other types of road surface marking lamp units described above.

[0040] According to the above embodiment, the information transmission by the markers drawn on the road surface can be improved. Also, since the marks corresponding to the lane change direction are drawn alternately in two different hues, one of the marks is continuously drawn on the road surface as a whole, and the presence of the mark is more easily felt than when it flashes in one hue. Also, since both marks are drawn in one hue before the lane change and the drawing mode of one of the marks is changed from that state, the change before and after the lane change becomes clearer, and the mark corresponding to the lane change direction is more emphasized.

[0041] The present invention is not limited to the contents of the above-mentioned embodiment, and various modifications can be made within the scope of the present invention. For example, in the above-mentioned embodiment, the difference between the marks is a combination of three elements, namely, hue, area, and whether or not the marks blink. However, the difference between the marks may be at least one of the elements listed above, or any combination of two or more elements may be used. Regarding the hue, the above-mentioned white and amber colors are an example of a suitable combination, but the combination is not limited to this, and any combination of colors that can be distinguished may be used. In the above-mentioned embodiment, a pair of road surface drawing units is shown as an example of a light irradiation device, but the configuration of the light irradiation device is not limited to this, and may be, for example, integrally configured. In the above-mentioned embodiment, the blinking cycle of the mark (the lighting cycle of the amber mark when it appears alternately) is synchronized with the lighting cycle of the turn signal unit 102, but the two do not necessarily need to be synchronized. In the above-mentioned embodiment, the mark is drawn on the road surface in front of the vehicle, but when the vehicle is traveling backward (for example, when the vehicle is traveling backward from a parking lot onto a road), the mark may be drawn on the road surface behind the vehicle. In this case, the road marking lamp unit may be provided at the rear or upper part of the vehicle. [Explanation of symbols]

[0042] 1: controller, 2: map data storage unit, 3: GPS sensor, 4L, 4R: lamp unit for drawing road surface, 100: drawing device for vehicle, 101: turn signal switch, 102: turn signal unit, 200: host vehicle, 201L, 201R, 202L: mark

Claims

1. a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light onto each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle; A controller connected to the light irradiation device and controlling an operation of the light irradiation device; Including, the controller controls the light irradiation device so that the mark is drawn in a first form in a first region of the two regions that is disposed on a side corresponding to a lane change direction of the vehicle, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first form has at least one of hue, illuminance, saturation, brightness, area, and motion greater than the second form; Vehicle drawing device.

2. a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light onto each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle; A controller connected to the light irradiation device and controlling an operation of the light irradiation device; Including, the controller controls the light irradiation device so that the mark is drawn in a first form in a first region of the two regions that is disposed on a side corresponding to a lane change direction of the vehicle, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first form is a form in which the mark is drawn in a first color, and the second form is a form in which the mark is drawn in a second color different from the first color. Vehicle drawing device.

3. The first form is a form in which the mark is drawn in a first color, and the second form is a form in which the mark is drawn in a second color different from the first color. The vehicle drawing device according to claim 1 .

4. a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light onto each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle; A controller connected to the light irradiation device and controlling an operation of the light irradiation device; Including, the controller controls the light irradiation device so that the mark is drawn in a first form in a first region of the two regions that is disposed on a side corresponding to a lane change direction of the vehicle, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first form is a form in which the mark is drawn so as to flash, and the second form is a form in which the mark is drawn continuously. Vehicle drawing device.

5. The first form is a form in which the mark is drawn so as to flash, and the second form is a form in which the mark is drawn continuously. The vehicle drawing device according to any one of claims 1 to 3.

6. A lighting cycle of the blinking mark in the first mode is synchronized with a lighting cycle of a turn signal of the vehicle.

6. The vehicle drawing device according to claim 4 or 5.

7. a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light onto each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle; A controller connected to the light irradiation device and controlling an operation of the light irradiation device; Including, the controller controls the light irradiation device so that the mark is drawn in a first form in a first region of the two regions that is disposed on a side corresponding to a lane change direction of the vehicle, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first form is a form in which the mark is drawn such that a first hue and a second hue different from the first hue appear alternately, and the second form is a form in which the mark is drawn in the second hue. Vehicle drawing device.

8. The first form is a form in which the mark is drawn such that a first hue and a second hue different from the first hue appear alternately, and the second form is a form in which the mark is drawn in the second hue. The vehicle drawing device according to claim 1 .

9. a lighting cycle of the second hue of the mark in the first form is synchronized with a lighting cycle of a turn signal of the vehicle; 9. The vehicle drawing device according to claim 7 or 8.

10. the first hue is amber and the second hue is white; 9. The vehicle drawing device according to claim 2, 3, 7 or 8.

11. a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light onto each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle; A controller connected to the light irradiation device and controlling an operation of the light irradiation device; Including, the controller controls the light irradiation device so that the mark is drawn in a first form in a first region that is disposed on a side corresponding to a lane change direction of the vehicle out of the two regions, and the mark is drawn in a second form different from the first form in a second region that is not the first region out of the two regions; and the controller controls the light irradiation device so that the mark is drawn in the second form in both the first area and the second area before the vehicle changes course. Vehicle drawing device.

12. the controller controls the light irradiation device so that the mark is drawn in the second form in both the first area and the second area before the vehicle changes course. The vehicle drawing device according to any one of claims 1 to 10.

13. A method for irradiating light using a vehicle drawing device including a light irradiation device mounted on a vehicle and capable of drawing a mark by irradiating light in each of two areas spaced apart in a vehicle width direction of the vehicle on a road surface in a traveling direction of the vehicle, and a controller connected to the light irradiation device and controlling an operation of the light irradiation device, the controller controls so that, when a turn signal switch of the vehicle is turned on, the mark is drawn in a first form in a first region of the two regions that is located on a side corresponding to the turn signal switch, and the mark is drawn in a second form different from the first form in a second region of the two regions that is not the first region, The first and second forms have any one of the following relationships (a) to (d): (a) the first form is larger than the second form in at least one of hue, illuminance, saturation, brightness, area, and motion; (b) the first form is a form in which the mark is drawn in a first hue, and the second form is a form in which the mark is drawn in a second hue different from the first hue; (c) the first form is a form in which the mark is drawn so as to flash, and the second form is a form in which the mark is drawn continuously; (d) the first form is a form in which the mark is drawn such that the first hue and the second hue different from the first hue appear alternately, and the second form is a form in which the mark is drawn in the second hue; The marks are drawn so as to satisfy the following relationship: Drawing instructions for vehicles.

14. the controller controls the light emitting device to draw the mark in the second form in both of the two regions when the turn signal switch is not on and the current position of the vehicle is near an intersection, and controls the light emitting device to stop drawing the mark in the second form in both of the two regions when the turn signal switch is not on and the current position of the vehicle is no longer near an intersection while the mark is being drawn in the second form in both of the two regions. The vehicle rendering method of claim 13.

15. The light irradiation device includes a pair of lamp units, The controller: When a first road on which the vehicle is traveling and a second road to be entered intersect at an acute angle, the pair of lamp units are controlled so that a drawing position of the mark by a first lamp unit of the pair of lamp units which is farther from the second road is shifted forward from a drawing position of the mark by a second lamp unit which is closer to the second road, and the pair of lamp units are controlled so as to irradiate the mark. The vehicle drawing device according to claim 13.

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