WO2023085000A1 - 路面描画ランプおよび路面描画ランプシステム - Google Patents
路面描画ランプおよび路面描画ランプシステム Download PDFInfo
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- WO2023085000A1 WO2023085000A1 PCT/JP2022/038544 JP2022038544W WO2023085000A1 WO 2023085000 A1 WO2023085000 A1 WO 2023085000A1 JP 2022038544 W JP2022038544 W JP 2022038544W WO 2023085000 A1 WO2023085000 A1 WO 2023085000A1
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- vehicle
- road surface
- light pattern
- lamp
- road
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 20
- 238000009877 rendering Methods 0.000 description 16
- 230000001678 irradiating effect Effects 0.000 description 13
- 238000004891 communication Methods 0.000 description 10
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Classifications
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- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
- B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
- B60Q1/381—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps with several light sources activated in sequence, e.g. to create a sweep effect
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/507—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking specific to autonomous vehicles
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
-
- 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
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/543—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking for indicating other states or conditions of the vehicle
-
- 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
- B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
- B60Q2400/50—Projected symbol or information, e.g. onto the road or car body
Definitions
- the present disclosure relates to road-drawing lamps and road-drawing lamp systems.
- Japanese Patent Laid-Open No. 2004-100000 discloses a method for presenting information indicating the operation of a vehicle (for example, information indicating whether the vehicle is turning left, right, or backing up) to pedestrians and the like present in the vicinity of the vehicle.
- a vehicular lamp configured to draw a light pattern is disclosed.
- the timing at which traffic participants such as pedestrians around the vehicle recognize the sequential light pattern may be delayed.
- the present disclosure aims to provide a road-drawing lamp and a road-drawing lamp system that enable early recognition of sequential light patterns by traffic participants around the vehicle.
- a road drawing lamp mounted on a vehicle, The road surface drawing lamp draws a sequential light pattern in which the irradiation area changes step by step in a drawing area set in the peripheral area of the vehicle, The road surface drawing lamp initially forms a first light pattern in which at least a portion including a leading end portion of the drawing area is drawn as the sequential light pattern.
- the road surface drawing lamp initially forms the first light pattern in which at least a portion including the leading end portion of the drawing area is drawn as a sequential light pattern. That is, since the sequential light pattern drawn first is the first light pattern, the light pattern is drawn from the beginning in the leading end portion of the drawing area. Therefore, according to the road surface drawing lamp according to the above configuration, the traffic participants around the vehicle can recognize the sequential light pattern at an early stage.
- a road surface drawing lamp system includes: The above-mentioned road surface drawing lamp, a lamp control unit that controls the road surface drawing lamp; a detection unit that detects obstacle information about an obstacle that is in the vicinity of the vehicle and limits the viewing angle of the vehicle; When the detection unit detects the obstacle, the detection unit transmits the obstacle information to the lamp control unit, The lamp control unit controls the road surface drawing lamp based on the obstacle information so that the sequential light pattern is drawn.
- the lamp control unit draws a sequential light pattern based on the obstacle information. to control the road drawing ramp.
- the road-drawing lamp system according to the above configuration can draw a sequential light pattern taking into account the obstacles that limit the viewing angle of the vehicle.
- FIG. 1 is a front view of a vehicle equipped with a vehicle system according to an embodiment of the present disclosure (hereinafter simply referred to as this embodiment).
- FIG. 2 is a block diagram of the vehicle system according to this embodiment.
- FIG. 3 is a diagram illustrating how a sequential light pattern is drawn on a road surface.
- FIG. 4 is a diagram illustrating the state when the sequential light pattern is not drawn on the road surface in the first embodiment.
- FIG. 5 is a diagram illustrating how the first light pattern is drawn on the road surface in the first embodiment.
- FIG. 6 is a diagram illustrating how the second light pattern is drawn on the road surface in the first embodiment.
- FIG. 7 is a diagram illustrating how the third light pattern is drawn on the road surface in the first embodiment.
- FIG. 1 is a front view of a vehicle equipped with a vehicle system according to an embodiment of the present disclosure (hereinafter simply referred to as this embodiment).
- FIG. 2 is a block diagram of the vehicle system according to this embodiment.
- FIG. 8 is a diagram illustrating how the first light pattern is drawn on the road surface in the third embodiment.
- FIG. 9 is a diagram illustrating how the second light pattern is drawn on the road surface in the fourth embodiment.
- FIG. 10 is a diagram illustrating the state when the first light pattern is drawn on the road surface in the fifth embodiment.
- FIG. 11 is a diagram illustrating how the first light pattern is drawn on the road surface in the sixth embodiment.
- the terms “horizontal direction”, “vertical direction”, and “front-back direction” may be referred to as appropriate. These directions are relative directions set for the vehicle 1 shown in FIG.
- the “left-right direction” is a direction including the “left direction” and the “right direction”, and is also the vehicle width direction of the vehicle 1 .
- the “vertical direction” is a direction that includes the “upward direction” and the “downward direction”.
- “Fore-and-aft direction” is a direction that includes "forward direction” and "rearward direction.”
- the front-rear direction is a direction perpendicular to the left-right direction and the up-down direction.
- the symbol U shown in each drawing indicates an upward direction.
- Symbol D indicates the downward direction.
- Symbol F indicates the forward direction.
- Symbol B indicates the rearward direction.
- Symbol L indicates the left direction.
- the symbol R indicates the right direction.
- FIG. 1 is a front view of a vehicle 1 equipped with a vehicle system 2.
- FIG. FIG. 2 is a block diagram of the vehicle system 2.
- FIG. 3 is a diagram illustrating how a sequential light pattern is drawn on a road surface.
- the vehicle 1 is, for example, a vehicle (automobile) that can run in manual operation mode or automatic operation mode.
- the vehicle system 2 includes a vehicle control unit 3, a road surface drawing lamp system 400, and a sensor 5. Furthermore, the vehicle system 2 includes an HMI (Human Machine Interface) 8, a GPS (Global Positioning System) 9, a wireless communication unit 10, a storage device 11, a steering actuator 12, a steering device 13, and a brake actuator 14. , a brake device 15 , an accelerator actuator 16 , and an accelerator device 17 .
- HMI Human Machine Interface
- GPS Global Positioning System
- the vehicle control unit 3 is configured to control travel of the vehicle 1.
- the vehicle control unit 3 is composed of, for example, at least one electronic control unit (ECU: Electronic Control Unit).
- the electronic control unit includes a computer system (eg, SoC (System on a Chip), etc.) including one or more processors and one or more memories, and an electronic circuit composed of active elements and passive elements such as transistors.
- the processor includes, for example, at least one of a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphics Processing Unit), and a TPU (Tensor Processing Unit).
- the CPU may be composed of multiple CPU cores.
- a GPU may consist of multiple GPU cores.
- the memory includes ROM (Read Only Memory) and RAM (Random Access Memory).
- a vehicle control program may be stored in the ROM.
- the vehicle control program may include an artificial intelligence (AI) program for automated driving.
- the RAM may temporarily store a vehicle control program, vehicle control data, and/or surrounding environment information indicating the surrounding environment of the vehicle.
- the processor may be configured to load a program designated from various vehicle control programs stored in the ROM onto the RAM and execute various processes in cooperation with the RAM.
- the computer system may also be configured by a non-von Neumann computer such as ASIC (Application Specific Integrated Circuit) or FPGA (Field-Programmable Gate Array).
- the computer system may be configured by a combination of von Neumann computers and non-von Neumann computers.
- the road surface rendering lamp system 400 includes a left front road surface rendering lamp unit 4L (hereinafter simply referred to as the road surface rendering lamp unit 4L), a right front road surface rendering lamp unit 4R (hereinafter simply referred to as the road surface rendering lamp unit 4R), and a camera. (an example of a detection unit) 6 and a radar (an example of a detection unit) 7 are provided.
- the road drawing lamp unit 4L is arranged in the lamp chamber of the left headlamp 20L.
- the road surface rendering lamp unit 4L may be provided separately from the left head lamp 20L.
- the road surface drawing lamp unit 4L may be arranged on the roof 100A of the vehicle 1 or may be arranged on the bumper of the vehicle 1.
- FIG. The road surface drawing lamp unit 4R is arranged in the lamp chamber of the right headlamp 20R.
- the road surface rendering lamp unit 4R may be provided separately from the right head lamp 20R.
- the road surface drawing lamp unit 4R may be arranged on the roof 100A of the vehicle 1 or may be arranged on the bumper of the vehicle 1.
- the road surface drawing lamp unit 4L has a road surface drawing lamp 45L and a lamp controller 46L.
- the road surface drawing lamp unit 4R has a road surface drawing lamp 45R and a lamp controller 46R. Details of the road surface rendering lamp unit 4L and the road surface rendering lamp unit 4R will be described later.
- Sensor 5 includes at least one of an acceleration sensor, a velocity sensor, and a gyro sensor.
- the sensor 5 is configured to detect the running state of the vehicle 1 and output running state information to the vehicle control unit 3 .
- the sensors 5 include a seating sensor that detects whether the driver is sitting in the driver's seat, a face direction sensor that detects the direction of the driver's face, an external weather sensor that detects external weather conditions, and a sensor that detects whether or not there is a person inside the vehicle.
- a human sensor or the like for detection may be further provided.
- the camera 6 is, for example, a camera including an imaging device such as a CCD (Charge-Coupled Device) or CMOS (Complementary MOS).
- the camera 6 detects surrounding environment information indicating the surrounding environment of the vehicle 1 and transmits the surrounding environment information to the lamp control units 46L and 46R via the vehicle control unit 3.
- the surrounding environment information includes obstacle information regarding obstacles that limit the viewing angle of the vehicle 1 .
- Such obstacles include, for example, walls provided on the side of the road, signs, other vehicles, and the like.
- the obstacle information includes type information about the type of obstacle, position information about the position of the obstacle, and the like.
- the radar 7 includes at least one of millimeter wave radar, microwave radar and LiDAR unit.
- the LiDAR unit detects surrounding environment information based on point cloud data representing the surrounding environment of the vehicle 1 and transmits the surrounding environment information to the lamp control units 46L and 46R via the vehicle control unit 3.
- the surrounding environment information detected by the radar 7 also includes obstacle information.
- the HMI 8 is composed of an input section that receives input operations from the driver and an output section that outputs driving information and the like of the vehicle 1 to the driver.
- the input unit includes a steering wheel, an accelerator pedal, a brake pedal, an operation mode switch for switching the operation mode of the vehicle 1, and the like.
- the output unit is a display device (for example, HUD, etc.) that displays various types of travel information.
- the HUD is configured to display travel information of the vehicle 1 on the front window 60 .
- the GPS 9 is configured to acquire current position information of the vehicle 1 and output the acquired current position information to the vehicle control section 3 .
- the wireless communication unit 10 receives information about other vehicles around the vehicle 1 (for example, travel information) from other vehicles, and transmits information about the vehicle 1 (for example, travel information) to the other vehicles. configured (vehicle-to-vehicle communication). Further, the wireless communication unit 10 is configured to receive infrastructure information from infrastructure equipment such as traffic lights and marker lights, and to transmit travel information of the vehicle 1 to the infrastructure equipment (road-to-vehicle communication). In addition, the wireless communication unit 10 receives information about the pedestrian from a portable electronic device (smartphone, tablet, wearable device, etc.) carried by the pedestrian, and transmits the own vehicle running information of the vehicle 1 to the portable electronic device. (pedestrian-to-vehicle communication). The vehicle 1 may directly communicate with other vehicles, infrastructure equipment, or portable electronic devices in an ad-hoc mode, or may communicate via an access point. Furthermore, the vehicle 1 may communicate with other vehicles, infrastructure equipment, or portable electronic devices via a communication network such as the Internet.
- a communication network such as the Internet.
- the storage device 11 is an external storage device such as a hard disk drive (HDD) or SSD (Solid State Drive).
- the storage device 11 may store two-dimensional or three-dimensional map information and/or a vehicle control program.
- the three-dimensional map information may be composed of point cloud data.
- the storage device 11 is configured to output map information and a vehicle control program to the vehicle control section 3 in response to a request from the vehicle control section 3 .
- the map information and vehicle control program may be updated via the wireless communication unit 10 and the communication network.
- the vehicle control unit 3 When the vehicle 1 runs in the automatic driving mode, the vehicle control unit 3 generates at least one of a steering control signal, an accelerator control signal, and a brake control signal based on the running state information, the surrounding environment information, the current position information, the map information, and the like. Automatically generate one.
- the steering actuator 12 is configured to receive a steering control signal from the vehicle control unit 3 and control the steering device 13 based on the received steering control signal.
- the brake actuator 14 is configured to receive a brake control signal from the vehicle control unit 3 and control the brake device 15 based on the received brake control signal.
- the accelerator actuator 16 is configured to receive an accelerator control signal from the vehicle control unit 3 and control the accelerator device 17 based on the received accelerator control signal.
- the vehicle control unit 3 when the vehicle 1 runs in manual operation mode, the vehicle control unit 3 generates a steering control signal, an accelerator control signal, and a brake control signal according to the driver's manual operation of the accelerator pedal, brake pedal, and steering wheel.
- the steering control signal, the accelerator control signal and the brake control signal are generated by the manual operation of the driver, so that the driving of the vehicle 1 is controlled by the driver.
- the road surface drawing lamp unit 4L draws a sequential light pattern P on the road surface around the vehicle 1 so as to present information indicating the operation of the vehicle 1 to the outside of the vehicle 1 .
- a projection method or a scanning method may be adopted as the drawing method of the road surface drawing lamp unit 4L.
- the information indicating the motion of the vehicle 1 is, for example, information indicating the left turn of the vehicle 1 .
- the road surface drawing lamp unit 4L draws the sequential light pattern P on the road surface in order to present the left turn of the vehicle 1 to the outside.
- the irradiation area changes step by step according to the passage of time.
- the sequential light pattern P is drawn in the drawing area R set in the peripheral area of the vehicle 1 .
- the drawing area R includes a first area (an example of a nearest area) R1, a second area (an example of an intermediate area) R2, a third area (an example of an intermediate area) R3, and a fourth area (an example of a farthest area). ) R4.
- the fourth region R4 includes a tip portion R40.
- the first region R1, the second region R2, the third region R3, and the fourth region R4 are arranged from rear to front in this order when the traveling direction of the vehicle 1 is the front direction.
- the sizes of the first region R1, the second region R2, the third region R3 and the fourth region R4 are equal. However, the sizes of the first region R1, the second region R2, the third region R3 and the fourth region R4 may differ.
- the road surface drawing lamp 45L includes a first light source 451, a second light source 452, a third light source 453, a fourth light source 454, and a projection lens 455.
- the first light source 451 to the fourth light source 454 can be composed of, for example, a plurality of LED (Light Emitting Diode) elements or LD (Laser Diode) elements.
- Projection lens 455 can be configured by, for example, a free-form surface lens.
- a free-form surface lens is a lens in which at least one of an exit surface and an entrance surface is a free-form surface.
- the light emitted from the first light source 451 to the fourth light source 454 is projected onto the road surface around the vehicle 1 through the projection lens 455 . In the example illustrated in FIG.
- the light emitted from the first light source 451 is applied to the first region R1.
- the light emitted from the second light source 452 is applied to the second region R2.
- Light emitted from the third light source 453 is applied to the third region R3.
- Light emitted from the fourth light source 454 is applied to the fourth region R4.
- the sequential light pattern P formed in the drawing area R changes by controlling the turning on/off of the first light source 451 to the fourth light source 454 by the lamp control unit 46L (see FIG. 2).
- the road surface drawing lamp 45L may be configured by, for example, a light source section that emits light, a drive mirror, and an optical system such as lenses and mirrors.
- the drive mirror is configured to draw a sequential light pattern P on the road surface by irradiating the road surface with light emitted from the light source.
- the driving mirror may be configured by, for example, a MEMS (Micro Electro Mechanical Systems) mirror, a DMD (Digital Mirror Device) or a blade mirror.
- MEMS Micro Electro Mechanical Systems
- DMD Digital Mirror Device
- blade mirror For example, light emitted from the light source may be scanned on the road surface by a MEMS mirror. In this way, a light pattern may be drawn on the road surface by light scanning by the MEMS mirror.
- the lamp controller 46L is configured to control the road surface drawing lamp 45L so that the sequential light pattern P is drawn on the road surface around the vehicle 1 .
- the location of the lamp control section 46L is not particularly limited.
- the lamp controller 46L includes a microcontroller and an analog drive control circuit.
- a microcontroller has a processor such as a CPU and a memory such as a ROM.
- the analog drive control circuit comprises a current control circuit configured to control the current supplied to the first light source 451-fourth light source 454.
- FIG. It should be noted that if the road marking lamp comprises a driven mirror and the sequential light pattern P is varied by driving the driven mirror, the analog drive control circuit comprises a mirror drive circuit configured to control the driven mirror.
- the vehicle control unit 3 controls the vehicle 1 to the lamp controller 46L.
- the lamp control unit 46L controls driving of the road surface drawing lamp 45L so that the sequential light pattern P is drawn on the road surface.
- the lamp controller 46 ⁇ /b>L is separated from the vehicle controller 3 in this embodiment, the lamp controller 46 ⁇ /b>L may be configured integrally with the vehicle controller 3 .
- the road surface rendering lamp unit 4R may have the same configuration as the road surface rendering lamp unit 4L. Like the road surface drawing lamp unit 4L, the road surface drawing lamp unit 4R draws a sequential light pattern on the road surface around the vehicle 1 so as to present information indicating the operation of the vehicle 1 to the outside of the vehicle 1.
- the road surface drawing lamp unit 4R may adopt a projection method or a scanning method as a drawing method of the road surface drawing lamp unit 4R.
- Information indicating the operation of the vehicle 1 is, for example, information indicating that the vehicle 1 turns right. For example, when the right turn of the vehicle 1 is determined, the road surface drawing lamp 45R draws a sequential light pattern on the road surface to indicate the right turn of the vehicle 1 to the outside.
- the sequential light turn emitted from the road surface drawing lamp unit 4R is basically the same as the sequential light pattern P emitted from the road surface drawing lamp unit 4L.
- the road surface drawing lamp units 4L and 4R arranged on the front side of the vehicle 1 are explained, but the road surface drawing lamp units can also be arranged on the rear side of the vehicle 1.
- the left rear road surface drawing lamp unit 40L (hereinafter simply referred to as the road surface drawing lamp unit 40L) may be arranged in the lamp chamber of the left rear combination lamp 60L of the vehicle 1, as illustrated in FIG.
- a right rear road surface rendering lamp unit 40R (hereinafter simply referred to as a road surface rendering lamp unit 40R) may be arranged in the lamp chamber of the right rear combination lamp 60R of the vehicle 1 .
- the road surface drawing lamp unit 40L is configured to draw a sequential light pattern P13 (see FIG.
- the road surface drawing lamp unit 40R is configured to draw a sequential light pattern P14 (see FIG. 11) on the road surface in order to present information indicating that the vehicle 1 is reversing to the outside of the vehicle 1.
- FIG. 4 is a diagram illustrating a state when the sequential light pattern P is not drawn on the road surface.
- FIG. 5 is a diagram illustrating how the first light pattern P1 is drawn on the road surface.
- FIG. 6 is a diagram illustrating how the second light pattern P2 is drawn on the road surface.
- FIG. 7 is a diagram illustrating how the third light pattern P3 is drawn on the road surface. 4 to 6 indicate respective regions of the first region R1 to the fourth region R4 included in the drawing region R.
- FIG. A blank area inside the dashed line is an area where no light is irradiated from the road surface drawing lamp 45L.
- the road surface drawing lamp unit 4L has a swivel mechanism (not shown) that can change the direction of the optical axis by rotating the road surface drawing lamp 45L in a desired direction.
- a swivel mechanism (not shown) that can change the direction of the optical axis by rotating the road surface drawing lamp 45L in a desired direction.
- FIGS. 4 to 7 there is a pedestrian (an example of a traffic participant) H in front of the left side of the vehicle 1 .
- a wall an example of an obstacle
- the sequential light pattern P includes a first light pattern P1 (see FIG. 5), a second light pattern P2 (see FIG. 6), and a third light pattern P3 (see FIG. 7).
- the first light pattern P1 is formed by irradiating the first region R1 and the fourth region R4 with light.
- the second light pattern P2 is formed by irradiating the first region R1, the second region R2 and the fourth region R4 with light.
- the third light pattern P3 is formed by irradiating the first region R1, the second region R2, the third region R3 and the fourth region R4 with light.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before the left turn of the vehicle 1 is determined.
- the vehicle control unit 3 transmits a signal indicating that the running state of the vehicle 1 has changed to the lamp control unit 46L. Based on the signal transmitted from the vehicle control unit 3, the lamp control unit 46L controls driving of the road surface drawing lamp 45L so that the sequential light pattern P is drawn on the road surface.
- the vehicle control unit 3 transmits surrounding environment information including obstacle information regarding obstacles that limit the viewing angle of the vehicle 1 to the lamp control unit 46L via the vehicle control unit 3.
- Control camera 6 and radar 7 to transmit. At least one of the camera 6 and the radar 7 detects the wall W1 based on a control signal from the vehicle control unit 3, and controls the surrounding environment information including obstacle information about the wall W1 via the vehicle control unit 3. It is transmitted to the section 46L.
- the lamp control unit 46L determines that there is a wall W1 on the left side of the vehicle 1 based on the obstacle information included in the received surrounding environment information.
- the lamp control unit 46L determines that the wall W1 exists on the left side of the vehicle 1, the sequential light pattern P is drawn in the vicinity of the position W10 corresponding to the wall W1 based on the position information regarding the position of the wall W1.
- the drawing area R (see FIG. 3) is set.
- the position W10 is a position where the outer edge of the drawing area R is as close as possible to the wall W1, but is a position where the road surface drawing R does not overlap the wall W1.
- the lamp control unit 46L controls the swivel mechanism so that the sequential light pattern P is drawn in the drawing region R, and rotates the road surface drawing lamp 45L. In this manner, the sequential light pattern P is drawn in the drawing area R by rotating the road surface drawing lamp 45L to a desired position.
- the road surface drawing lamp 45L first draws the first light pattern P1 on the road surface in front of the vehicle 1 . That is, the road surface drawing lamp 45L irradiates the first area R1 closest to the vehicle 1 and the fourth area R4 far from the vehicle 1 with light. Note that the tip portion R40 of the fourth region R4 exists within a range of 2 m or more and 10 m or less of the vehicle 1 .
- the road surface drawing lamp 45L draws the second light pattern P2 on the road surface after drawing the first light pattern P1 on the road surface.
- the road surface drawing lamp 45L for example, draws the second light pattern P2 on the road surface approximately 0.1 to 0.4 seconds after drawing the first light pattern P1 on the road surface. That is, in the state illustrated in FIG. 6, the road surface drawing lamp 45L irradiates the second region R2 with light in addition to the first region R1 and the fourth region R4.
- the road surface drawing lamp 45L draws the third light pattern P3 on the road surface after drawing the second light pattern P2 on the road surface.
- the road surface drawing lamp 45L for example, draws the third light pattern P3 on the road surface approximately 0.1 to 0.4 seconds after drawing the second light pattern P2 on the road surface. That is, the road surface drawing lamp 45L also irradiates the third region R3 with light in addition to the first region R1, the second region R2 and the fourth region R4.
- the road surface drawing lamp 45L finishes drawing the sequential light pattern P about 0.1 to 0.4 seconds after drawing the third light pattern P3 on the road surface.
- the road surface drawing lamp 45L may repeat the above operation.
- the interval from the start of drawing of the sequential light pattern P to the end of drawing (one cycle of the sequential light pattern P) is, for example, approximately 0.3 seconds to 1.2 seconds. Note that the drawing intervals of the respective light patterns may be equal or different.
- the shape of the sequential light pattern P is rectangular in this embodiment, the shape of the sequential light pattern P is not particularly limited.
- the shape of the sequential light pattern P may be circular or arrow-shaped, for example.
- the sequential light pattern P is often formed by moving an image from the side closer to the vehicle 1 toward the side farther from the vehicle 1 along the traveling direction of the vehicle.
- an obstacle such as a wall W1 may exist on the virtual line connecting the pedestrian H and the first region R1, and the pedestrian H may cross the first region R1. It may not be visible.
- the pedestrian H can easily recognize the sequential light pattern P because there are few obstacles such as the wall W1 between H and the fourth region R4.
- the road surface drawing lamp 45L firstly draws the first light pattern P1 as the sequential light pattern P in the fourth region R4 including the first region R1 and the tip portion R40. Form. That is, since the sequential light pattern P to be drawn first is the first light pattern P1, the light pattern is drawn in the leading end portion R40 of the drawing region R from the beginning. Therefore, according to the road surface drawing lamp 45L, the pedestrian H around the vehicle 1 can recognize the sequential light pattern P at an early stage.
- the first light pattern P1 is drawn in the first region R1 and the fourth region R4. That is, since the light pattern is drawn from the beginning in the fourth region R4, which is the farthest region from the vehicle 1, the pedestrian H around the vehicle 1 can recognize the sequential light pattern P at an early stage. .
- the road surface drawing lamp 45L draws the sequential light pattern P in the drawing area R when the signal indicating the change in the running state is acquired from the vehicle 1 . Therefore, according to the road surface drawing lamp 45L, when the running state of the vehicle 1 changes, the pedestrian H can be made to recognize the sequential light pattern P at an early stage.
- the leading end portion R40 of the drawing area R is 2 m or more from the vehicle 1, which is a range in which the pedestrian H around the vehicle 1 can easily visually recognize the sequential light pattern P, and Exists in a range of 10 m or less. Therefore, the pedestrian H around the vehicle 1 can recognize the sequential light pattern P early and appropriately.
- the lamp control unit 46L controls the detected obstacle Based on the object information, the road drawing lamp 45L is controlled so that the sequential light pattern P is drawn. In this way, the road-drawing lamp system 400 can draw the sequential light pattern P taking into account the presence of the wall W1 that limits the viewing angle of the vehicle 1 .
- the road surface drawing lamp 45L has a swivel mechanism, and the drawing area R is set by aiming at the position W10 corresponding to the wall W1. It does not have to be.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before the left turn of the vehicle 1 is determined.
- the vehicle control unit 3 transmits a signal indicating that the running state of the vehicle 1 has changed to the lamp control unit 46L, based on the same principle as in the first embodiment.
- the lamp control unit 46L controls driving of the road surface drawing lamp 45L so that the sequential light pattern P is drawn on the road surface.
- the same sequential light pattern P as in the first embodiment is drawn in the drawing area R.
- FIG. the control of the road surface drawing lamp 45L in this embodiment differs from the control of the road surface drawing lamp 45L in the first embodiment.
- the lamp control unit 46L determines that the wall W1 exists on the left side of the vehicle 1, based on the position information regarding the position of the wall W1, a sequential light pattern is generated in the vicinity of the position W10 corresponding to the wall W1.
- a drawing area R (see FIG. 3) is set so that P is drawn.
- the lamp control unit 46L controls the drive mirror so that the sequential light pattern P is drawn in the drawing area R, and scans the road surface with the light emitted from the light source unit.
- the sequential light pattern P is drawn in the drawing area R.
- FIG. 1 when the first light pattern P1, the second light pattern P2, and the third light pattern P3 are respectively drawn on the road surface, the state is the same as that of the first embodiment, so the explanation is as follows. omitted.
- the road surface drawing lamp 45L and the road surface drawing lamp system 400 according to the above configuration can also provide the same effects as the first embodiment.
- FIG. 8 is a diagram illustrating how the first light pattern P10 is drawn on the road surface in the third embodiment.
- the same reference numerals are given to the same configurations as in the first embodiment, and descriptions of overlapping portions are omitted as appropriate.
- the vehicle 1 is about to turn left.
- the sequential light pattern P includes a first light pattern P10, a second light pattern P2 and a third light pattern P3.
- the second light pattern P2 and the third light pattern P3 in this embodiment are the same as the second light pattern P2 and the third light pattern P3 in the first embodiment, but the first light pattern P10 is , different from the first light pattern P1 in the first embodiment.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before the left turn of the vehicle 1 is determined.
- the vehicle control unit 3 transmits a signal indicating that the running state of the vehicle 1 has changed to the lamp control unit 46L.
- the lamp control unit 46L controls driving of the road surface drawing lamp 45L so that the sequential light pattern P is drawn on the road surface.
- the lamp control unit 46L determines that the wall W1 exists on the left side of the vehicle 1, and based on the position information regarding the position of the wall W1, the sequential light pattern P is drawn in the vicinity of the position W10 corresponding to the wall W1.
- the drawing area R (see FIG. 3) is set.
- the lamp control unit 46L controls the swivel mechanism so that the sequential light pattern P is drawn in the drawing region R, and rotates the road surface drawing lamp 45L.
- the road surface drawing lamp 45L first draws the first light pattern P10 including vehicle information on the road surface in front of the vehicle 1.
- vehicle information includes, for example, vehicle type information about the type of vehicle (automobile, motorcycle, truck, etc.), travel plan information about the planned travel direction of the vehicle, speed information about the speed of the vehicle, and the like.
- the road surface drawing lamp 45L draws a rectangular light pattern in the first region R1 closest to the vehicle 1, while the fourth region R4 farther from the vehicle 1, i.e. An automobile-shaped light pattern is drawn in the vicinity of the tip portion R40.
- the shape of the light pattern drawn in the fourth region R4 indicates the type of the vehicle 1 mounted with the road surface drawing lamp 45L that draws the first light pattern P10. That is, the light pattern drawn in the fourth area R4 includes vehicle type information (an example of vehicle information).
- the pedestrian H can recognize the light pattern including the vehicle type information drawn in the fourth area R4. Therefore, the pedestrian H can recognize that the vehicle 1, which is an automobile, is around the pedestrian H when the first light pattern P10 is drawn on the road surface.
- the road surface drawing lamp 45L draws the second light pattern P2 on the road surface, for example, about 0.1 seconds to 0.4 seconds after drawing the first light pattern P10 on the road surface (see FIG. 6). Furthermore, the road surface drawing lamp 45L draws the third light pattern P3 on the road surface approximately 0.1 to 0.4 seconds after drawing the second light pattern P2 on the road surface (see FIG. 7). Then, the road surface drawing lamp 45L finishes drawing the sequential light pattern P about 0.1 to 0.4 seconds after drawing the third light pattern P3 on the road surface.
- the road surface drawing lamp 45L and the road surface drawing lamp system 400 according to the above configuration can also provide the same effects as the first embodiment.
- the vehicle type information is drawn in the fourth area R4, that is, in the vicinity of the tip portion R40. Therefore, the pedestrian H around the vehicle 1 can recognize the sequential light pattern P at an early stage, and can also quickly recognize the vehicle type information about the vehicle 1 located nearby.
- FIG. 9 is a diagram illustrating how the second light pattern P20 is drawn on the road surface in the fourth embodiment.
- the same reference numerals are given to the same configurations as in the first embodiment, and descriptions of overlapping portions are omitted as appropriate.
- the vehicle 1 is about to turn left.
- the sequential light pattern P includes a first light pattern P1, a second light pattern P20 and a third light pattern P3.
- the first light pattern P1 and the third light pattern P3 in this embodiment are the same as the first light pattern P1 and the third light pattern P3 in the first embodiment, but the second light pattern P20 is , different from the second light pattern P2 in the first embodiment.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before the left turn of the vehicle 1 is determined.
- the first light pattern P1 is drawn on the road surface in front of the vehicle 1, as illustrated in FIG. 5, according to the same principle as in the first embodiment.
- the road surface drawing lamp 45L draws the second light pattern P20 on the road surface approximately 0.1 to 0.4 seconds after drawing the first light pattern P1 on the road surface, for example. .
- the road surface drawing lamp 45L irradiates the fourth region R4 with the illuminance of the light applied to the fourth region R4 when drawing the second light pattern P20 to the fourth region R4 when drawing the first light pattern P1. Make it lower than the illuminance of the light. That is, after drawing the first light pattern P1, the road surface drawing lamp 45L draws the sequential light pattern P so that its illuminance gradually decreases.
- the road surface drawing lamp 45L for example, draws the third light pattern P3 on the road surface approximately 0.1 to 0.4 seconds after drawing the second light pattern P20 on the road surface (see FIG. 7). Then, the road surface drawing lamp 45L finishes drawing the sequential light pattern P about 0.1 to 0.4 seconds after drawing the third light pattern P3 on the road surface.
- the road surface drawing lamp 45L and the road surface drawing lamp system 400 according to the above configuration can also provide the same effects as the first embodiment.
- the road surface drawing lamp 45L draws the first light pattern P1 and then draws the sequential light pattern P so that the illuminance thereof gradually decreases. That is, since the first light pattern P1 drawn first has the highest illuminance, the design of the sequential light pattern P is maintained while making the pedestrian H around the vehicle 1 recognize the sequential light pattern P at an early stage. be able to.
- FIG. 10 is a diagram illustrating how the first light patterns P11 and P12 are drawn on the road surface in the fifth embodiment.
- the same reference numerals are given to the same configurations as in the first embodiment, and descriptions of overlapping portions are omitted as appropriate.
- the vehicle control unit 3 determines to start the vehicle 1 based on the driving state information received from the sensor 5, or the vehicle control unit 3 controls the vehicle 1 in response to the drive range being operated by the driver. decide to start.
- the sequential light pattern P includes first light patterns P11 and P12, a second light pattern described later, and a third light pattern described later.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before the start of the vehicle 1 is determined.
- the first light patterns P11 and P12 are drawn on the road surface in front of the vehicle 1, as illustrated in FIG. 10, by the same principle as in the first embodiment. .
- the first light pattern P11 is formed by emitting light from the road surface drawing lamp 45L
- the first light pattern P12 is formed by emitting light from the road surface drawing lamp 45R.
- the first light patterns P11 and P12 are drawn in the first areas R11 and R12 closest to the vehicle 1 and the fourth areas R41 and R42 far from the vehicle 1, as in the first embodiment. be done. Also, the first light patterns P11 and P12 extend linearly toward the front of the vehicle 1 .
- the road surface drawing lamps 45L and 45R draw the second light pattern on the road surface approximately 0.1 to 0.4 seconds after drawing the first light patterns P11 and P12 on the road surface, for example.
- the second light pattern is formed by irradiating the first regions R11, R12, the second regions R21, R22, and the fourth regions R41, R42 with light.
- the road surface drawing lamps 45L and 45R draw the third light pattern on the road surface approximately 0.1 to 0.4 seconds after drawing the second light pattern on the road surface.
- the third light pattern is formed by irradiating the first regions R11, R12, the second regions R21, R22, the third regions R31, R32, and the fourth regions R41, R42 with light. Then, the road surface drawing lamps 45L and 45R finish drawing the sequential light pattern P about 0.1 to 0.4 seconds after drawing the third light pattern on the road surface, for example.
- the road surface drawing lamps 45L and 45R and the road surface drawing lamp system 400 according to the above configuration can also produce the same effect as the first embodiment.
- the first light patterns P11, P12 extending linearly toward the front of the vehicle 1 are drawn on the road surface in front of the vehicle 1. be done. Therefore, the pedestrian H around the vehicle 1 can quickly recognize the sequential light pattern P and that the vehicle 1 around the pedestrian H is about to start forward.
- FIG. 11 is a diagram illustrating how the first light patterns P13 and P14 are drawn on the road surface in the sixth embodiment.
- the same reference numerals are given to the same configurations as in the first embodiment, and descriptions of overlapping portions are omitted as appropriate.
- the vehicle control unit 3 determines to reverse the vehicle 1 based on the driving state information received from the sensor 5, or the vehicle control unit 3 controls the vehicle 1 in response to the driver operating the Rebus range.
- the road surface drawing lamp unit 40L is arranged in the lamp chamber of the left rear combination lamp 60L of the vehicle 1, and the road surface drawing lamp unit 40R is arranged in the lamp chamber of the right rear combination lamp 60R of the vehicle 1.
- the road surface drawing lamp units 40L and 40R are swivel wheels capable of changing the direction of the optical axis by rotating the road surface drawing lamps provided in the road surface drawing lamp units 40L and 40R in a desired direction.
- a mechanism (not shown) shall be provided.
- the sequential light pattern P includes first light patterns P13 and P14, a second light pattern described later, and a third light pattern described later.
- the sequential light pattern P is not drawn on the road surface around the vehicle 1 before it is determined that the vehicle 1 should move backward.
- the lamp controller 46L controls the road surface drawing lamp unit 40L and the road surface drawing lamp unit 40L so that the sequential light pattern P is drawn on the road surface according to the same principle as in the first embodiment. It controls the driving of the 40R road surface drawing lamp.
- at least one of the camera 6 and the radar 7 transmits surrounding environment information including obstacle information regarding a wall (an example of an obstacle) W2 on the left side of the vehicle 1 to the vehicle control unit. 3 to the lamp controllers of the road surface rendering lamp unit 40L and the road surface rendering lamp unit 40R.
- the lamp control unit determines that the wall W2 exists on the left side of the vehicle 1, and sets a drawing area near the wall W2 based on the position information regarding the position of the wall W2. Then, the lamp control section controls the swivel mechanism to rotate the road surface drawing lamps of the road surface drawing lamp unit 40L and the road surface drawing lamp unit 40R so that the sequential light pattern P is drawn in the set drawing area. .
- first light patterns P13 and P14 are drawn on the road surface behind the vehicle 1 .
- the first light pattern P13 is formed by emitting light from a road surface drawing lamp provided in the road surface drawing lamp unit 40L.
- the first light pattern P14 is formed by emitting light from a road surface drawing lamp provided in the road surface drawing lamp unit 40R.
- the first light patterns P13 and P14 are drawn in the first regions R13 and R14 closest to the vehicle 1 and the fourth regions R43 and R44 far from the vehicle 1, as in the first embodiment. be done. Also, the first light patterns P13 and P14 extend linearly toward the rear of the vehicle 1 .
- the road surface drawing lamps provided in the road surface drawing lamp unit 40L and the road surface drawing lamp unit 40R for example, draw the first light patterns P13 and P14 on the road surface, and after about 0.1 to 0.4 seconds, draw the second light pattern. Draw on the road surface.
- the second light pattern is formed by irradiating the first regions R13, R14, the second regions R23, R24, and the fourth regions R43, R44 with light.
- the road surface drawing lamps provided in the road surface drawing lamp unit 40L and the road surface drawing lamp unit 40R draw the third light pattern on the road surface approximately 0.1 to 0.4 seconds after drawing the second light pattern on the road surface, for example. do.
- the third light pattern is formed by irradiating the first regions R13, R14, the second regions R23, R24, the third regions R33, R34, and the fourth regions R43, R44 with light.
- the road surface drawing lamps 45L and 45R finish drawing the sequential light pattern P about 0.1 to 0.4 seconds after drawing the third light pattern on the road surface, for example.
- the road surface drawing lamp and the road surface drawing lamp system according to the above configuration can also produce the same effect as the first embodiment.
- the first light patterns P13 and P14 extending linearly toward the rear of the vehicle 1 are drawn on the road surface behind the vehicle 1 . Therefore, the pedestrian H around the vehicle 1 can quickly recognize the sequential light pattern P and the fact that the vehicle 1 around the pedestrian H is moving backward.
- the road surface drawing lamp 45L includes the projection lens 455, but instead of the projection lens 455, it may include a reflector.
- the first light patterns P1, P10 to P14 are formed by irradiating the first regions R1, R11 to R14 and the fourth regions R4, R41 to R44 with light. It may be formed by irradiating only the regions R4, R41 to R44 with light. In this case, after the first light patterns P1, P10 to P14 are drawn, for example, the first regions R1, R11 to R14 and the fourth regions R4, R41 to R44 are irradiated with light to form the second pattern.
- the first light patterns P1, P10 to P14 may be formed by irradiating the outer frame of the drawing region R including the tip portion R40 with light.
- the fourth region R4 is always irradiated with light. Light may be applied only at the end of drawing.
- the pedestrian H is exemplified as a traffic participant, but the traffic participant is not limited to the pedestrian H.
- a traffic participant may be, for example, another vehicle that is different from the vehicle 1 .
- the light pattern drawn in the fourth region R4 includes vehicle type information, but may also include travel schedule information, speed information, and the like.
- the shape of the light pattern drawn in the fourth region R4 is It is a shape corresponding to the character of 40 km/h.
- the road surface drawing lamp 45L draws the second light pattern P2 that does not include vehicle information on the road surface after drawing the first light pattern P10 on the road surface.
- Light patterns may be drawn.
- the road surface drawing lamp 45L draws the second light pattern P2 on the road surface and then draws the third light pattern P3 that does not include vehicle information on the road surface.
- a third light pattern may be written comprising: Also in this case, the light pattern including the vehicle information included in the second light pattern and/or the third light pattern is drawn in the vicinity of the fourth region R4, that is, the tip portion R40.
- a road surface drawing lamp mounted on a vehicle The road surface drawing lamp draws a sequential light pattern in which the irradiation area changes step by step in a drawing area set in the peripheral area of the vehicle,
- the road-drawing lamp forms a first light pattern in which at least a portion including a tip portion of the drawing region is drawn first as the sequential light pattern.
- the drawing area includes at least a nearest area that is the closest area from the vehicle and a farthest area that is the area farthest from the vehicle;
- the road drawing lamp according to (1) wherein the first light pattern is drawn at least in the farthest region.
- the road drawing lamp according to any one of (1) to (6); a lamp control unit that controls the road surface drawing lamp; a detection unit that detects obstacle information about an obstacle that is in the vicinity of the vehicle and limits the viewing angle of the vehicle; When the detection unit detects the obstacle, the detection unit transmits the obstacle information to the lamp control unit, The road drawing lamp system, wherein the lamp control unit controls the road drawing lamp so that the sequential light pattern is drawn based on the obstacle information.
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Abstract
Description
車両に搭載される路面描画ランプであって、
前記路面描画ランプは、前記車両の周辺領域に設定される描画領域において段階的に照射領域が変化するシーケンシャル光パターンを描画し、
前記路面描画ランプは、前記シーケンシャル光パターンとして最初に、前記描画領域の先端部分を含む一部分が少なくとも描画された第一光パターンを形成する。
上記の路面描画ランプと、
前記路面描画ランプを制御するランプ制御部と、
前記車両の周辺にあり、かつ前記車両の視野角を制限する障害物に関する障害物情報を検出する検出部と、を備え、
前記検出部は、前記障害物を検出すると、前記障害物情報を前記ランプ制御部に送信し、
前記ランプ制御部は、前記障害物情報に基づいて、前記シーケンシャル光パターンが描画されるように前記路面描画ランプを制御する。
最初に、図1から図3を参照して、本実施形態に係る車両システム2について以下に説明する。図1は、車両システム2が搭載された車両1の正面図である。図2は、車両システム2のブロック図である。図3は、路面にシーケンシャル光パターンが描画される様子を例示する図である。車両1は、例えば、手動運転モードまたは自動運転モードで走行可能な車両(自動車)である。
次に、図4から図7を参照しつつ、第二実施例について説明する。なお、本実施例において、第一実施例と同様の構成については同じ符号を付して説明し、また説明が重複する部分については適宜説明を省略する。本実施例は、路面描画ランプ45L,45Rが、光を出射する光源部と、駆動ミラーと、レンズやミラー等の光学系によって構成されている点で第一実施例と異なる。なお、本実施例において、路面描画ランプ45L,45R以外の構成については第一実施例と同様である。また、本実施例においても、車両1は左折しようとしているものとする。
次に、図4および図6から図8を参照しつつ、第三実施例について説明する。図8は、第三実施例において、第一光パターンP10が路面に描画されている時の様子を例示する図である。なお、本実施例において、第一実施例と同様の構成については同じ符号を付して説明し、また説明が重複する部分については適宜説明を省略する。また、本実施例においても、車両1は左折しようとしているものとする。さらに、本実施例において、シーケンシャル光パターンPは、第一光パターンP10、第二光パターンP2および第三光パターンP3を含んでいる。本実施例における第二光パターンP2および第三光パターンP3は、第一実施例における第二光パターンP2および第三光パターンP3と同様であるが、第一光パターンP10は、後述するように、第一実施例における第一光パターンP1と異なる。
次に、図4、図5、図7および図9を参照しつつ、第四実施例について説明する。図9は、第四実施例において、第二光パターンP20が路面に描画されている時の様子を例示する図である。なお、本実施例において、第一実施例と同様の構成については同じ符号を付して説明し、また説明が重複する部分については適宜説明を省略する。また、本実施例においても、車両1は左折しようとしているものとする。さらに、本実施例において、シーケンシャル光パターンPは、第一光パターンP1、第二光パターンP20および第三光パターンP3を含んでいる。本実施例における第一光パターンP1および第三光パターンP3は、第一実施例における第一光パターンP1および第三光パターンP3と同様であるが、第二光パターンP20は、後述するように、第一実施例における第二光パターンP2と異なる。
次に、図10を参照しつつ、第五実施例について説明する。図10は、第五実施例において、第一光パターンP11,P12が路面に描画されている時の様子を例示する図である。なお、本実施例において、第一実施例と同様の構成については同じ符号を付して説明し、また説明が重複する部分については適宜説明を省略する。本実施例では、車両制御部3がセンサ5から受信した走行状態情報に基づいて車両1の発進を決定し、または運転者によりドライブレンジが操作されたことに応じて車両制御部3は車両1の発進を決定する。また、本実施例において、シーケンシャル光パターンPは、第一光パターンP11,P12と、後述する第二光パターンと、後述する第三光パターンと、を含んでいるものとする。
次に、図11を参照しつつ、第六実施例について説明する。図11は、第六実施例において、第一光パターンP13,P14が路面に描画されている時の様子を例示する図である。なお、本実施例において、第一実施例と同様の構成については同じ符号を付して説明し、また説明が重複する部分については適宜説明を省略する。本実施例では、車両制御部3がセンサ5から受信した走行状態情報に基づいて車両1の後退を決定し、または運転者によりリーバスレンジが操作されたことに応じて車両制御部3は車両1の後退を決定する。なお、本実施例では、路面描画ランプユニット40Lが車両1の左側リアコンビネーションランプ60Lの灯室内に、路面描画ランプユニット40Rが車両1の右側リアコンビネーションランプ60Rの灯室内に配置されているものとして説明する。また、本実施例において、路面描画ランプユニット40L,40Rは、路面描画ランプユニット40L,40Rに備わる路面描画ランプを所望の方向に回動することで光軸の向きを変更することが可能なスイブル機構(図示せず)を備えているものとする。さらに、本実施例において、シーケンシャル光パターンPは、第一光パターンP13,P14と、後述する第二光パターンと、後述する第三光パターンと、を含んでいるものとする。
(1)車両に搭載される路面描画ランプであって、
前記路面描画ランプは、前記車両の周辺領域に設定される描画領域において段階的に照射領域が変化するシーケンシャル光パターンを描画し、
前記路面描画ランプは、前記シーケンシャル光パターンとして最初に、前記描画領域の先端部分を含む一部分が少なくとも描画された第一光パターンを形成する、路面描画ランプ。
(2)前記描画領域は、少なくとも、前記車両から最も近くの領域である最近領域と、前記車両から最も遠くの領域である最遠領域と、を含み、
前記第一光パターンは、少なくとも前記最遠領域に描画される、(1)に記載の路面描画ランプ。
(3)前記路面描画ランプは、前記車両から走行状態の変化を示す信号が取得されたときに、前記描画領域に前記シーケンシャル光パターンを描画する、(1)または(2)に記載の路面描画ランプ。
(4)前記シーケンシャル光パターンは、前記車両に関する車両情報を含み、
前記路面描画ランプは、前記車両情報を前記先端部分の近傍に描画する、(1)から(3)のいずれか一つに記載の路面描画ランプ。
(5)前記路面描画ランプは、前記第一光パターンを描画した後に前記シーケンシャル光パターンをその照度が徐々に低くなるように描画する、(1)から(4)のいずれか一つに記載の路面描画ランプ。
(6)前記描画領域の前記先端部分は、前記車両から2m以上かつ10m以下の範囲に存在する、(1)から(5)のいずれか一つに記載の路面描画ランプ。
(7)(1)から(6)のいずれか一つに記載の路面描画ランプと、
前記路面描画ランプを制御するランプ制御部と、
前記車両の周辺にあり、かつ前記車両の視野角を制限する障害物に関する障害物情報を検出する検出部と、を備え、
前記検出部は、前記障害物を検出すると、前記障害物情報を前記ランプ制御部に送信し、
前記ランプ制御部は、前記障害物情報に基づいて、前記シーケンシャル光パターンが描画されるように前記路面描画ランプを制御する、路面描画ランプシステム。
Claims (7)
- 車両に搭載される路面描画ランプであって、
前記路面描画ランプは、前記車両の周辺領域に設定される描画領域において段階的に照射領域が変化するシーケンシャル光パターンを描画し、
前記路面描画ランプは、前記シーケンシャル光パターンとして最初に、前記描画領域の先端部分を含む一部分が少なくとも描画された第一光パターンを形成する、路面描画ランプ。 - 前記描画領域は、少なくとも、前記車両から最も近くの領域である最近領域と、前記車両から最も遠くの領域である最遠領域と、を含み、
前記第一光パターンは、少なくとも前記最遠領域に描画される、請求項1に記載の路面描画ランプ。 - 前記路面描画ランプは、前記車両から走行状態の変化を示す信号が取得されたときに、前記描画領域に前記シーケンシャル光パターンを描画する、請求項1または請求項2に記載の路面描画ランプ。
- 前記シーケンシャル光パターンは、前記車両に関する車両情報を含み、
前記路面描画ランプは、前記車両情報を前記先端部分の近傍に描画する、請求項1または請求項2に記載の路面描画ランプ。 - 前記路面描画ランプは、前記第一光パターンを描画した後に前記シーケンシャル光パターンをその照度が徐々に低くなるように描画する、請求項1または請求項2に記載の路面描画ランプ。
- 前記描画領域の前記先端部分は、前記車両から2m以上かつ10m以下の範囲に存在する、請求項1または請求項2に記載の路面描画ランプ。
- 請求項1または請求項2に記載の路面描画ランプと、
前記路面描画ランプを制御するランプ制御部と、
前記車両の周辺にあり、かつ前記車両の視野角を制限する障害物に関する障害物情報を検出する検出部と、を備え、
前記検出部は、前記障害物を検出すると、前記障害物情報を前記ランプ制御部に送信し、
前記ランプ制御部は、前記障害物情報に基づいて、前記シーケンシャル光パターンが描画されるように前記路面描画ランプを制御する、路面描画ランプシステム。
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JP2015168290A (ja) * | 2014-03-05 | 2015-09-28 | 株式会社デンソー | 路面描画装置 |
JP2016193689A (ja) * | 2015-04-01 | 2016-11-17 | 株式会社小糸製作所 | 車両用描画装置 |
WO2020067113A1 (ja) | 2018-09-25 | 2020-04-02 | 株式会社小糸製作所 | 灯具システムおよび車両用灯具 |
JP2020055374A (ja) * | 2018-09-28 | 2020-04-09 | 株式会社小糸製作所 | 自動車用照明灯 |
JP2021185575A (ja) | 2020-01-10 | 2021-12-09 | トヨタ自動車株式会社 | レファレンス治具 |
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JP2015168290A (ja) * | 2014-03-05 | 2015-09-28 | 株式会社デンソー | 路面描画装置 |
JP2016193689A (ja) * | 2015-04-01 | 2016-11-17 | 株式会社小糸製作所 | 車両用描画装置 |
WO2020067113A1 (ja) | 2018-09-25 | 2020-04-02 | 株式会社小糸製作所 | 灯具システムおよび車両用灯具 |
JP2020055374A (ja) * | 2018-09-28 | 2020-04-09 | 株式会社小糸製作所 | 自動車用照明灯 |
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