JP6971123B2 - Vehicle lighting - Google Patents

Description

The present invention relates to a vehicle lamp.

A tail lamp for a two-wheeled vehicle including a tail lamp is known in Patent Document 1 and the like.

Japanese Unexamined Patent Publication No. 5-20905

By the way, the rear lamp mounted on a motorcycle or the like may be configured as a rear combination lamp having a plurality of indicator lamps such as a tail lamp, a stop lamp, and a turn signal lamp. The rear combination lamp is required to improve visibility from the rear of the own vehicle (for example, a following vehicle or a pedestrian).

An object of the present invention is to provide a lamp for a vehicle capable of improving visibility.

In order to achieve the above object, the vehicle lighting equipment of the present invention is used.
It is a vehicle lighting fixture installed in a vehicle that can run in a corner by tilting the vehicle body in the direction of turning.
A first lamp that irradiates light to the rear of the vehicle and a second lamp that is arranged in front of the vehicle and irradiates light to the rear of the vehicle are provided.
The first lamp has a light source and an optical member that diffuses the light emitted from the light source.
Since at least a part of the optical member is composed of a transparent member or a member having translucency, the second lamp can be visually recognized through the first lamp.

According to the vehicle lighting equipment of the present disclosure, at least a part of the first lamp arranged behind the second lamp is composed of a transparent member or a translucent member, whereby the second lamp is formed. It is configured to be visible through the first lamp. As a result, the visibility of the second lamp can be ensured from any direction behind the vehicle.

The optical member may be formed in a plate shape.

According to this configuration, the visibility of the second lamp can be reliably ensured.

The optical member has a first light emitting region in which the light is diffused and emitted, and a non-light emitting region in which the light is not diffused and emitted.
The optical member may be configured such that the first light emitting region and the non-light emitting region are alternately arranged to form a striped pattern.

According to this configuration, it is possible to provide the first lamp having a novel design while ensuring the visibility of the second lamp.

The first light emitting region may be composed of a material containing a light diffusing material.

According to this configuration, the first light emitting region can be easily formed.

The optical member further has a second light emitting region arranged on its outer edge and composed of a material containing a light diffusing material.
The emission intensity of the second emission region may be higher than the emission intensity of the first emission region.

According to this configuration, when the first lamp is lit, it is possible to exhibit a new design while maintaining the function as a indicator lamp of the first lamp.

The first lamp functions as a tail lamp or a stop lamp and
The second lamp may function as a turn signal lamp.

According to this configuration, it is possible to provide a vehicle lighting fixture as a novel combination lamp having a high design.

According to the present invention, it is possible to provide a lamp for a vehicle capable of improving visibility.

It is a partial enlarged perspective view of the vehicle provided with the lighting fixture for a vehicle which concerns on embodiment of this invention. It is a block diagram of the lighting fixture for a vehicle of FIG. It is a top side perspective view of the lighting fixture for a vehicle of FIG. It is a bottom side perspective view of the lighting fixture for a vehicle of FIG. It is a top view of the lighting fixture for a vehicle of FIG. It is a left side view of the lighting fixture for a vehicle of FIG. It is a left side perspective view of the lighting fixture for a vehicle of FIG. It is a flowchart for demonstrating an example of lighting control of a road surface drawing lamp. It is a schematic diagram for demonstrating an example of lighting control of a road surface drawing lamp.

An embodiment of the present invention will be described with reference to the drawings. The "left-right direction", "front-back direction", and "vertical direction" in the present embodiment are relative directions set for the vehicle shown in FIG. 1 for convenience of explanation. The "front-back direction" is a direction including "forward direction" and "backward direction". The "left-right direction" is a direction including "left direction" and "right direction". The "vertical direction" is a direction including "upward" and "downward".

FIG. 1 shows a motorcycle 100 as an example of a vehicle according to the present embodiment. The motorcycle 100 is a vehicle capable of traveling along a corner (curve) of a road by tilting the vehicle body in a turning direction. The vehicle of the present embodiment may be a vehicle such as the motorcycle 100, which can travel in a corner by tilting the vehicle body in a turning direction, and the number of wheels is not limited. Therefore, for example, even a motorcycle, a motorcycle, or the like is included in the vehicle of the present embodiment as long as it can travel in the same manner as the motorcycle 100.

As shown in FIG. 1, the motorcycle 100 has a vehicle lamp 1 at the rear portion. As shown in FIG. 2, the vehicle lighting equipment 1 includes a rear combination lamp unit 2 capable of illuminating the rear of the vehicle, a road surface drawing lamp 4 capable of forming a road surface drawing pattern on the road surface behind the vehicle, and a rear combination lamp unit. 2 and a lighting control unit 5 for controlling the operation of the road surface drawing lamp 4.

The rear combination lamp unit 2 includes, for example, a left stop lamp 21L, a right stop lamp 21R, a left tail / stop lamp 23L, a right tail / stop lamp 23R, a left turn signal lamp 25L, and a right turn signal lamp 25R. It is composed of.

The road surface drawing lamp 4 has a configuration for projecting (irradiating) a predetermined drawing pattern on the road surface around the motorcycle 100. Examples of the road surface drawing lamp 4 include a projector. In this example, the road surface drawing lamp 4 can form a predetermined road surface drawing pattern (for example, the road surface drawing pattern P in FIG. 9) on the road surface behind the motorcycle 100.

A rear combination lamp unit 2 and a road surface drawing lamp 4 are connected to the lighting control unit 5, a bank angle sensor 6 that detects an inclination state (bank angle) of the motorcycle 100, and environmental information outside the vehicle. An external sensor 7 (an example of a detection unit) for detection is connected. Further, a speed sensor 8 or the like for detecting the speed of the motorcycle 100 is connected to the lighting control unit 5. The lighting control unit 5, the bank angle sensor 6, the external sensor 7, and the speed sensor 8 are mounted at predetermined positions on the vehicle body of the motorcycle 100. The lighting control unit 5 may be realized as a function of an integrated control unit (vehicle ECU (Electronic Control Unit)) mounted on the motorcycle 100, or may be realized as a function of the rear combination lamp unit 2 or the lamp 4 for road surface drawing. It may be realized as one function of the control device arranged in the room.

The lighting control unit 5 is composed of, for example, at least one electronic control unit (ECU). The electronic control unit may include at least one microcontroller including one or more processors and one or more memories, and other electronic circuits including active and passive elements such as transistors. The processor is, for example, a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphics Processing Unit) and / or a TPU (Tensor Processing Unit). The CPU may be composed of a plurality of CPU cores. The GPU may be composed of a plurality of GPU cores. The memory includes a ROM (Read Only Memory) and a RAM (Random Access Memory). The vehicle control program may be stored in the ROM. For example, the vehicle control program may include an artificial intelligence (AI) program for autonomous driving. The AI program is a program constructed by supervised or unsupervised machine learning using a neural network such as deep learning. The RAM may temporarily store a vehicle control program, vehicle control data, and / or peripheral environment information indicating the surrounding environment of the vehicle. The processor may be configured to expand a program specified from a vehicle control program stored in a storage device or a ROM on the RAM and execute various processes in cooperation with the RAM.
Further, the electronic control unit may be configured by an integrated circuit (hardware resource) such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field-Programmable Gate Array). Further, the electronic control unit may be composed of a combination of at least one microcontroller and an integrated circuit.

The bank angle sensor 6 is a sensor capable of detecting the tilt angle when the vehicle body of the motorcycle 100 is tilted to the left or right with respect to the vertical line. The bank angle sensor 6 is composed of, for example, a gyro sensor. The inclination angle of the vehicle body may be calculated based on an image taken by a camera mounted on the motorcycle 100.

The external sensor 7 provides environmental information outside the motorcycle 100, including the surrounding environment of the vehicle 100 (for example, obstacles, other vehicles (front-running vehicle, oncoming vehicle, following vehicle), pedestrians, road shapes, traffic signs, etc.). It is a sensor that can be acquired. The external sensor 7 is composed of at least one such as a LiDAR, a camera, and a radar.

LiDAR is an abbreviation for Light Detection and Ranging or Laser Imaging Detection and Ranging. LiDAR is a sensor that generally emits invisible light in front of it and acquires information such as the distance to an object, the shape of an object, the material of an object, and the color of an object based on the emitted light and the return light.
The camera is, for example, a camera including an image pickup device such as a CCD (Charge-Coupled Device) or a CMOS (Complementary MOS). Cameras include cameras that detect visible light and infrared cameras that detect infrared light.
Radars include millimeter wave radars, microwave radars, laser radars and the like.

Each information detected by the bank angle sensor 6, the external sensor 7, and the speed sensor 8 is transmitted to the lighting control unit 5. The lighting control unit 5 controls the operation of each lamp of the rear combination lamp unit 2 and the road surface drawing lamp 4 based on the information transmitted from the sensors 6 to 8. For example, the lighting control unit 5 controls each lamp of the rear combination lamp unit 2 based on the detection information of each sensor 6 to 8 and adjusts the lighting pattern visually recognized from the periphery (particularly rearward) of the motorcycle 100. It is possible. Further, the lighting control unit 5 can control the road surface drawing lamp 4 based on the detection information of each of the sensors 6 to 8 and adjust the road surface drawing pattern formed on the road surface behind the motorcycle 100. be.

FIG. 3 is a top perspective view of the vehicle lamp 1 mounted on the motorcycle 100 of FIG. 1, and FIG. 4 is a bottom perspective view of the vehicle lamp 1. Further, FIG. 5 is a top view of the vehicle lighting tool 1, and FIG. 6 is a left side view of the vehicle lighting tool 1.
As shown in FIGS. 3 to 6, the rear portion of the motorcycle 100 is provided with a protruding portion 103 protruding rearward from the tandem seat 101. A camera 7A and a LiDAR 7B are mounted on the rear end side of the protrusion 103 as an example of the external sensor 7. That is, the camera 7A and the LiDAR7B can acquire the environmental information behind the motorcycle 100.

Further, at the rear of the motorcycle 100, first cowls 105L and 105R and second cowls 107L and 107R are provided as vehicle body covers for reducing air resistance.

The pair of left and right first cowls 105L and 105R are attached below the tandem seat 101 and are arranged so as to extend upward and diagonally backward. As shown in FIG. 4, the first cowl 105L on the left side is the left tail / stop lamp 23L of the rear combination lamp unit 2 described later on the left side of the protrusion 103 on which the camera 7A and the LiDAR 7B are mounted in the rear view of the vehicle. And the left turn signal lamp 25L is formed in a curved shape so as to form a space in which it can be arranged. Further, the first cowl 105R on the right side forms a space on the right side of the protrusion 103 in which the right tail / stop lamp 23R and the right turn signal lamp 25R of the rear combination lamp unit 2 can be arranged in the rear view of the vehicle. It is formed in a curved shape.

The pair of left and right second cowls 107L and 107R are arranged outside the bent portions 105L1 and 105R1 of the first cowl 105L and 105R formed in a substantially L shape when viewed from the top of the vehicle. The second cowl 107L on the left side is composed of a first region 107L1 extending in the vertical direction and a second region 107L2 extending in the front-rear direction from the upper end of the first region 107L1. Further, the second cowl 107R on the right side is composed of a first region 107R1 extending in the vertical direction and a second region 107R2 extending in the front-rear direction from the upper end of the first region 107R1.

The rear end faces of the left and right first cowls 105L and 105R are provided with light emitting parts composed of a light source and a light guide body (not shown), and these light emitting parts are used as a left stop lamp 21L and a right stop lamp 21R, respectively. Function.

A left tail / stop lamp 23L and a right tail / stop lamp 23R are arranged on the left side surface side and the right side surface side of the protrusion 103, respectively. The left tail / stop lamp 23L and the right tail / stop lamp 23R are a plurality of light sources 41 (the light sources of the right tail / stop lamp 23R are not shown) and a light guide body that diffuses the light emitted from the plurality of light sources 41. It has 43L and 43R (an example of an optical member), respectively. As shown by the broken line in FIG. 4, the plurality of light sources 41 are provided inside the protrusion 103. As the light source 41, a lamp light source or a light emitting element can be used. Examples of lamp light sources include incandescent lamps, halogen lamps, discharge lamps, neon lamps and the like. Examples of the light emitting element include a light emitting diode, a laser diode, an organic EL element, and the like.

The light guide bodies 43L and 43R are formed as a substantially rectangular flat plate-like body, and are arranged so as to project from the projecting portion 103 in the left-right direction. The light guide bodies 43L and 43R are made of a transparent resin material. Examples of the resin material used for the light guide bodies 43L and 43R include a transparent thermoplastic resin such as a polycarbonate resin and an acrylic resin, or a thermosetting resin.

The light guide bodies 43L and 43R have first light emitting regions 43L1 and 43R1 that diffuse and emit light emitted from the light source 41, and non-light emitting regions 43L2 and 43R2 that do not diffuse and emit light emitted from the light source 41. ing. The light guide bodies 43L and 43R are configured such that the band-shaped first light emitting regions 43L1 and 43R1 and the band-shaped non-light emitting regions 43L2 and 43R2 are alternately arranged to form a striped pattern. The first light emitting regions 43L1 and 43R1 are made of, for example, a resin material having translucency and containing a light diffusing material for diffusing the light emitted from the light source 41. As a result, the first light emitting regions 43L1 and 43R1 can diffuse the light emitted from the light source 41. Examples of the light diffusing material include titanium dioxide particles. Since the non-light emitting regions 43L2 and 43R2 do not contain the light diffusing material, the light emitted from the light source 41 is not diffused.

The light guide bodies 43L and 43R further have second light emitting regions 43L3 and 43R3 arranged on the outer edge thereof and containing a light diffusing material. The density of the light diffusing material contained in the second light emitting regions 43L3 and 43R3 is set to be higher than the density of the light diffusing material contained in the first light emitting regions 43L1 and 43R1. The emission intensity of the second emission regions 43L3 and 43R3 is configured to be higher than the emission intensity of the regions 43L1 and 43R1.

The first regions 107L1 and 107R1 of the left and right second cowls 107L and 107R are each provided with a light emitting unit composed of a light source and a light guide body (not shown), and these light emitting units are the left turn signal lamp 25L and the right. Functions as a turn signal lamp 25R. That is, the left turn signal lamp 25L is arranged on the front side of the vehicle with respect to the light guide body 43L that functions as the left tail / stop lamp 23L. Similarly, the right turn signal lamp 25R is arranged on the front side of the vehicle with respect to the light guide body 43R that functions as the right tail / stop lamp 23R.

A road surface drawing lamp 4 is arranged on the lower surface of the protrusion 103. As shown in FIG. 9, for example, the road surface drawing lamp 4 can irradiate a plurality of strip-shaped lines on the road surface behind the motorcycle 100 to form a fan-shaped road surface drawing pattern P. The mounting position of the road surface drawing lamp 4 may be any position as long as the road surface drawing pattern P can be formed on the road surface behind the motorcycle 100, and is not limited to the position exemplified in this embodiment. ..

The lighting control unit 5 is configured to change the lighting states of the lamps 21L, 21R, 23L, 23R, 25L, 25R and the road surface drawing lamp 4 of the rear combination lamp unit 2 according to the state of the motorcycle 100. ing. For example, the lighting control unit 5 turns on the left stop lamp 21L, the right stop lamp 21R, the left tail / stop lamp 23L, and the right tail / stop lamp 23R based on the brake control of the driver of the motorcycle 100. It may be configured. Further, the lighting control unit 5 may be configured to light either the left turn signal lamp 25L or the right turn signal lamp 25R based on the direction instruction input of the driver of the motorcycle 100. Further, the lighting control unit 5 sets the road surface drawing pattern P on the road surface by the road surface drawing lamp 4 at the same time as the lighting timing of each lamp of the rear combination lamp unit 2 or in conjunction with the lighting timing of each lamp of the rear combination lamp unit 2. It may be configured to form on top.

As described above, the vehicle lamp 1 according to the present embodiment includes left and right tail / stop lamps 23L and 23R (an example of the first lamp) that irradiate the rear of the motorcycle 100 with light, and left and right tail / stop. The left and right turn signal lamps 25L and 25R (an example of the second lamp), which are arranged in front of the motorcycle 100 and illuminate the rear of the motorcycle 100 with respect to the lamps 23L and 23R, are provided. The tail / stop lamps 23L and 23R have a light source 41 and light guide bodies 43L and 43R that diffuse the light emitted from the light source 41. Since the light guide bodies 43L and 43R are made of transparent members, the turn signal lamps 25L and 25R can be visually recognized through the light guide bodies 43L and 43R of the tail / stop lamps 23L and 23R. It is configured as follows. According to this configuration, as shown in FIGS. 4 and 7, the light guide bodies 43L and 43R are arranged even from the direction in which the tail / stop lamps 23L and 23R are arranged in front of the turn signal lamps 25L and 25R. The lighting of the turn signal lamps 25L and 25R can be recognized via. That is, the visibility of the turn signal lamps 25L and 25R can be ensured from any direction behind the vehicle.

Further, since the light guide bodies 43L and 43R of the tail / stop lamps 23L and 23R are formed in a plate shape, the visibility of the turn signal lamps 25L and 25R can be reliably ensured. In the above example, the light guide bodies 43L and 43R of the tail / stop lamps 23L and 23R are composed of transparent members, but the turn signal lamps 25L and 25R are transparent to the extent that they can be visually recognized. It may be composed of a member having a member (for example, a translucent member). Further, in the above example, the light guide bodies 43L and 43R are entirely composed of transparent members, but as long as the turn signal lamps 25L and 25R are visible through the light guide bodies 43L and 43R. A part of the light guide bodies 43L and 43R may be composed of a non-transparent member.

Further, in the light guide bodies 43L and 43R, the first light emitting regions 43L1 and 43R1 that diffuse the light emitted from the light source 41 and the non-light emitting regions 43L2 and 43R2 that do not diffuse and emit the light emitted from the light source 41 alternate. It is configured to be arranged in a striped pattern. Thereby, it is possible to provide the tail / stop lamps 23L and 23R having a new design while ensuring the visibility of the turn signal lamps 25L and 25R.

Further, the light guide bodies 43L and 43R further have second light emitting regions 43L3 and 43R3 arranged on the outer edge thereof and composed of a material containing a light diffusing material, and are based on the light emitting intensity of the first light emitting regions 43L1 and 43R1. Is also configured to increase the emission intensity of the second emission regions 43L3 and 43R3. As a result, the first light emitting regions 43L1 and 43R1 forming the striped pattern are made to emit light while maintaining the function of the tail / stop lamps 23L and 23R as the indicator lamps by making the second light emitting regions 43L3 and 43R3 emit light. It is possible to provide tail / stop lamps 23L and 23R having a new design.

Next, an example of the lighting control process of the road surface drawing lamp 4 according to the present embodiment will be described with reference to FIGS. 8 and 9.
First, the lighting control unit 5 receives a detection signal from an external sensor 7 (for example, a camera 7A and a LiDAR 7B arranged on the rear end surface of the protrusion 103), and acquires environmental information around the motorcycle 100 (step). S10).

Next, the lighting control unit 5 has a vehicle-to-vehicle distance between the motorcycle 100, which is its own vehicle, and an object (for example, the following vehicle V in FIG. 9) based on the environmental information acquired in step S10, which is equal to or less than the first distance. (Step S12). The first distance is, for example, about 7 to 10 m. When it is determined in step S12 that the inter-vehicle distance is equal to or less than the first distance (Yes in step S12), the lighting control unit 5 continuously lights the road surface drawing lamp 4 (step S14). As a result, the fan-shaped road surface drawing pattern P composed of a plurality of strip-shaped lines is continuously irradiated on the road surface behind the motorcycle 100 (see FIG. 9).

Next, the lighting control unit 5 determines whether or not the inter-vehicle distance between the motorcycle 100 and the following vehicle V is equal to or less than the second distance (step S16). The second distance is, for example, about 4 to 7 m. When it is determined in step S16 that the inter-vehicle distance is equal to or less than the second distance (Yes in step S16), the lighting control unit 5 blinks the road surface drawing lamp 4 (step S18). As a result, the road surface drawing pattern P is flashed and illuminated.

Next, the lighting control unit 5 determines whether or not the inter-vehicle distance is equal to or less than the second distance (step S20). When it is determined in step S20 that the inter-vehicle distance is not less than or equal to the second distance (that is, the inter-vehicle distance is longer than the second distance) (No in step S20), the lighting control unit 5 draws the road surface. The lamp 4 is continuously turned on (step S22). As a result, the road surface drawing pattern P is continuously irradiated again.

Next, the lighting control unit 5 determines whether or not the inter-vehicle distance is equal to or less than the first distance (step S24). When it is determined in step S24 that the inter-vehicle distance is not less than or equal to the first distance (that is, the inter-vehicle distance is longer than the first distance) (No in step S24), the lighting control unit 5 is continuously lit. The road surface drawing lamp 4 inside is turned off (step S26). As a result, the road surface drawing pattern P disappears. After that, the lighting control unit 5 returns the process to step S12.

As described above, the vehicle lighting tool 1 according to the present embodiment includes a road surface drawing lamp 4 that forms a road surface drawing pattern P on the road surface behind the motorcycle 100, and an external lamp that detects the following vehicle V of the motorcycle 100. It includes a sensor 7 (for example, a camera 7A and a LiDAR 7B) and a lighting control unit 5 that controls a road surface drawing lamp 4. Then, the lighting control unit 5 is based on the detection information (an example of the first detection information) regarding the following vehicle V acquired from the external sensor 7, for example, the distance between the motorcycle 100 and the following vehicle V is constant (an example). For example, when the distance is equal to or less than the first distance), the road surface drawing lamp 4 is controlled so as to form the road surface drawing pattern P. According to this configuration, when the distance between the motorcycle 100 and the following vehicle V becomes short, the road surface drawing pattern P is formed on the road surface behind the motorcycle 100, so that the driver of the following vehicle V can see the motorcycle. It is possible to notify the approach to 100. As a result, it is possible to urge the driver of the following vehicle V to appropriately secure the inter-vehicle distance from the motorcycle 100.

The road surface drawing pattern formed on the road surface around the motorcycle 100 is not limited to the shape of the road surface drawing pattern P shown in FIG. For example, a road surface drawing pattern may be formed that includes information on the inter-vehicle distance (for example, "Caution for approaching!" Or "Inter-vehicle distance: XXm"). As a result, the driver of the following vehicle V can easily recognize that the road surface drawing pattern is for promoting the securing of the inter-vehicle distance.

Further, in the above embodiment, the road surface drawing lamp 4 is arranged at the rear of the motorcycle 100 (near the rear combination lamp unit 2), and the light emitted from the road surface drawing lamp 4 is behind the motorcycle 100. The road surface drawing pattern P is formed on the road surface, but the present invention is not limited to this example. A road surface drawing lamp is provided on the front or side of the motorcycle 100, and the distance between the motorcycle 100 and an object in front of or to the side of the vehicle (for example, a preceding vehicle, a parallel vehicle, an oncoming vehicle, a pedestrian, etc.) When is less than a certain distance, a predetermined road surface drawing pattern may be formed on the road surface in front of or on the side of the motorcycle 100. With this configuration, it is possible to notify the drivers and pedestrians of vehicles around the motorcycle 100 about the approach to the motorcycle 100, and also to notify the driver of the motorcycle 100 to approach the surrounding objects. It can be notified.

Further, the lighting control unit 5 is configured to change the display mode of the road surface drawing pattern P according to the inter-vehicle distance between the motorcycle 100 and the following vehicle V. Specifically, the lighting control unit 5 sets a plurality of threshold values (first distance and second distance) for the inter-vehicle distance between the motorcycle 100 and the following vehicle V, and the inter-vehicle distance is the first. When the distance is equal to or less than the distance, the road surface drawing pattern P is continuously irradiated on the road surface, and when the inter-vehicle distance is equal to or less than the second distance, the road surface drawing pattern P is blinking and irradiated. As a result, it is possible to more effectively alert the driver of the following vehicle V using the road surface drawing pattern P. The lighting control unit 5 may gradually irradiate (sequentially emit) a plurality of strip-shaped lines constituting the road surface drawing pattern P instead of irradiating the entire road surface drawing pattern P with blinking. Further, the lighting control unit 5 may be configured to change the shape of the road surface drawing pattern to a shape different from the road surface drawing pattern P when the inter-vehicle distance is equal to or less than the second distance.

Further, the lighting control unit 5 may be configured to be able to acquire detection information (an example of the second detection information) different from the detection information regarding the following vehicle V. The second detection information preferably includes at least one of information regarding the vehicle speed of the motorcycle 100, information regarding the change state of the vehicle speed of the motorcycle 100, and information regarding the weather. In this way, the lighting control unit 5 forms the road surface drawing pattern P by adding conditions other than the inter-vehicle distance between the motorcycle 100 and the following vehicle V, thereby making the following vehicle V more suitable for the driver. Effective alerting can be performed. For example, in situations where it is important to secure the inter-vehicle distance, such as when the motorcycle 100 is traveling at high speed, when the motorcycle 100 suddenly brakes, or in bad weather, the timing of irradiation of the road surface drawing pattern P is advanced. Alternatively, it is preferable to form a road surface drawing pattern P having high visibility from the driver of the following vehicle V. Therefore, it is important to secure the inter-vehicle distance by setting the first distance, which is the threshold value of the inter-vehicle distance, to a longer distance than usual (for example, about 10 to 13 m) based on the second detection information. In this case as well, it is possible to surely alert the driver of the following vehicle V. Further, instead of changing the setting of the first distance, or in addition to changing the setting of the first distance, when the inter-vehicle distance is equal to or less than the first distance, the road surface drawing lamp 4 is blinked. The road surface drawing pattern P may be flashed and irradiated.

Further, the lighting control unit 5 responds to the first mode in which the road surface drawing lamp 4 is turned on according to the first detection information to form the road surface drawing pattern P on the road surface, and the input instruction of the driver of the motorcycle 100. It is preferable to have a second mode in which the road surface drawing lamp 4 is turned on to form the road surface drawing pattern P on the road surface. As described above, the lighting control unit 5 has the second mode in which the road surface drawing pattern P can be formed based on the input instruction of the driver of the motorcycle 100, so that the driver can enter the following vehicle V. Even when it is determined that attention is required, the road surface drawing pattern P can be appropriately formed.

In the above embodiment, the first detection information regarding the object around the vehicle (for example, the following vehicle V) is acquired by the external sensor 7 composed of at least one such as LiDAR, a camera, and a radar. , Not limited to this example. For example, the lighting control unit 5 may acquire the first detection information by using road-to-vehicle communication with the base station device or vehicle-to-vehicle communication with an on-board unit of another vehicle. Further, the lighting control unit 5 may acquire the first detection information by combining the detection signal by the external sensor 7 with the road-to-vehicle communication and the vehicle-to-vehicle communication. In this way, various detection information can be acquired by using road-to-vehicle communication and vehicle-to-vehicle communication.

The order of processing specified in each step shown in FIG. 8 is merely an example, and the order of these steps can be changed as appropriate.

Although the embodiments of the present invention have been described above, it goes without saying that the technical scope of the present invention should not be construed in a limited manner by the description of the present embodiments. It is understood by those skilled in the art that the present embodiment is merely an example, and various embodiments can be modified within the scope of the invention described in the claims. The technical scope of the present invention should be determined based on the scope of the invention described in the claims and the scope thereof.

1: Vehicle lighting equipment 2: Rear combination lamp unit 4: Road surface drawing lamp 5: Lighting control unit, 6: Bank angle sensor, 7: External sensor (an example of detection unit), 8: Speed sensor, 21L: Left stop lamp, 21R: Right stop lamp, 23L: Left tail / stop lamp, 23R: Right tail / stop lamp, 25L: Left turn signal lamp, 25R: Right turn signal lamp, 41: Light source, 43L, 43R: Light guide Body (example of optical member), 43L1, 43R1: 1st light emitting region, 43L2, 43R2: non-light emitting region, 43L3, 43R3: 2nd light emitting region, 100: motorcycle (example of vehicle), 101: tandem seat, 103 : Protruding part, 105L, 105R: First cowl, 105L1,105R1: Bending part, 107L, 107R: Second cowl, 107L1, 107R1: First area, 107L2, 107R2: Second area, P: Road surface drawing pattern, V : Following vehicle

Claims (5)

It is a vehicle lighting fixture installed in a vehicle that can run in a corner by tilting the vehicle body in the direction of turning.
A first lamp that irradiates light to the rear of the vehicle and a second lamp that is arranged in front of the vehicle and irradiates light to the rear of the vehicle are provided.
The first lamp has a light source and an optical member that diffuses the light emitted from the light source.
Wherein by at least a portion of the optical member is made of a member having a transparent member or a translucent, Ri viewable der the second lamp passes through the first ramp,
The optical member has a plurality of first light emitting regions that diffuse and emit light, and a plurality of non-light emitting regions that do not diffuse and emit the light.
The optical member, wherein that plurality of first light-emitting region and said plurality of non-light-emitting region is configured as is to stripes arranged alternately formed, the vehicular lamp. The vehicle lamp according to claim 1, wherein the optical member is formed in a plate shape. The vehicle lamp according to claim 1 or 2 , wherein the first light emitting region is made of a material containing a light diffusing material. The optical member further has a second light emitting region arranged on its outer edge and composed of a material containing a light diffusing material.
The vehicle lamp according to any one of claims 1 to 3, wherein the light emitting intensity of the second light emitting region is higher than the light emitting intensity of the first light emitting region. The first lamp functions as a tail lamp or a stop lamp and
The vehicle lamp according to any one of claims 1 to 4 , wherein the second lamp functions as a turn signal lamp.

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