WO2022131044A1 - 車両用灯具システム、配光制御装置および配光制御方法 - Google Patents
車両用灯具システム、配光制御装置および配光制御方法 Download PDFInfo
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- WO2022131044A1 WO2022131044A1 PCT/JP2021/044658 JP2021044658W WO2022131044A1 WO 2022131044 A1 WO2022131044 A1 WO 2022131044A1 JP 2021044658 W JP2021044658 W JP 2021044658W WO 2022131044 A1 WO2022131044 A1 WO 2022131044A1
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- vehicle
- light distribution
- illuminance
- unit
- width direction
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Images
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
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
- F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
- F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/255—Lenses with a front view of circular or truncated circular outline
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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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
- B60Q1/0017—Devices integrating an element dedicated to another function
- B60Q1/0023—Devices integrating an element dedicated to another function the element being a sensor, e.g. distance sensor, camera
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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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/054—Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity
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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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
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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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/41—Indexing codes relating to other road users or special conditions preceding vehicle
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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
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
- F21W2102/155—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions having inclined and horizontal cutoff lines
Definitions
- the present invention relates to a vehicle lamp system, a light distribution control device, and a light distribution control method.
- the conventional lighting fixture for a vehicle reduces glare given to a driver or the like of a vehicle in front by forming a light distribution pattern for a low beam including a cut-off line (see, for example, Patent Document 1).
- ADB Adaptive Driving Beam control that dynamically and adaptively controls the light distribution pattern of the high beam based on the surrounding conditions of the vehicle.
- the ADB control detects the presence or absence of a vehicle in front with a camera or the like, and dims or turns off the area corresponding to the vehicle in front.
- the present invention has been made in view of such a situation, and one of the objects thereof is to provide a technique for reducing glare given to a driver of a vehicle in front.
- One aspect of the present invention is a vehicle lamp system.
- This vehicle lighting system is capable of forming a low beam light distribution pattern having a cut-off line, and in the low beam light distribution pattern, the illuminances of a plurality of partial regions arranged along the cut-off line below the cut-off line are independent of each other.
- Adjustable low beam unit and light distribution that controls the low beam unit to form the first illuminance reduction unit in the partial region where the position in the vehicle width direction overlaps with the position of the vehicle in front in the vehicle width direction among the plurality of partial regions. It is equipped with a control device.
- a low beam light distribution pattern having a cut-off line, and the illuminance of a plurality of partial regions arranged along the cut-off line below the cut-off line in the low-beam light distribution pattern is applied to each other.
- Another aspect of the present invention is a light distribution control method for controlling the formation of a low beam light distribution pattern having a cut-off line.
- this light distribution control method among a plurality of partial regions arranged along the cutoff line below the cutoff line in the low beam light distribution pattern, the position in the vehicle width direction overlaps with the position of the vehicle in front in the vehicle width direction. Includes forming a first illuminance reduction section.
- glare given to the driver of the vehicle in front can be reduced.
- FIG. 2A is a schematic diagram showing a range in which the low beam unit and the ADB unit can irradiate light.
- FIG. 2B is a schematic diagram showing a low beam light distribution pattern and an ADB light distribution pattern. It is a schematic diagram which shows the light distribution pattern formed when the vehicle in front is detected. It is a schematic diagram for demonstrating the illuminance setting method of the 1st illuminance reduction part. It is a flowchart which shows an example of the light distribution control executed by a light distribution control device.
- FIG. 1 is a diagram showing a schematic configuration of a vehicle lamp system 1 according to an embodiment.
- a part of the components of the vehicle lamp system 1 is drawn as a functional block.
- These functional blocks are realized by elements and circuits such as a computer CPU and memory as a hardware configuration, and are realized by a computer program or the like as a software configuration. It is understood by those skilled in the art that these functional blocks can be realized in various forms by combining hardware and software.
- the vehicle lighting system 1 includes a low beam unit 2, an ADB unit 4, a vehicle detection device 6, and a light distribution control device 8. Further, the vehicle lighting system 1 of the present embodiment includes a lamp body 10 having an opening on the front side of the vehicle, and a translucent cover 12 attached so as to cover the opening of the lamp body 10. The lamp body 10 and the translucent cover 12 form a lamp chamber.
- the low beam unit 2, the ADB unit 4, the vehicle detection device 6, and the light distribution control device 8 are housed in a light room.
- the vehicle detection device 6 and the light distribution control device 8 may be provided outside the lighting room, for example, on the vehicle side.
- the vehicle detection device 6 may be composed of an in-vehicle camera.
- the light distribution control device 8 may be composed of a vehicle ECU.
- the low beam unit 2 and the ADB unit 4 may be housed in separate lighting chambers.
- the low beam unit 2 includes a first irradiation unit 14 and a second irradiation unit 16.
- the first irradiation unit 14 and the second irradiation unit 16 are fixed to the lamp body 10 by a known connecting mechanism (not shown) in a state where the optical axis of each irradiation unit can be adjusted in the horizontal direction and the vertical direction.
- the first irradiation unit 14 of the present embodiment is a so-called projector type (diffuse lens optical system) lamp unit, and is a first light source 18, a first heat sink 20, a reflector 22, a lens holder 24, and a first light source unit. It has a projection lens 26.
- projector type diffuse lens optical system
- the first light source 18 has a structure in which a light emitting element 18b is arranged on a circuit board 18a.
- the circuit board 18a is a thermally conductive insulating substrate made of ceramic or the like.
- the circuit board 18a is formed with electrodes that transmit electric power to the light emitting element 18b.
- the light emitting element 18b is, for example, an LED (light emitting diode).
- the light emitting device 18b may be a semiconductor light emitting device other than an LED such as an LD (laser diode) or an organic or inorganic EL (electroluminescence).
- the first light source 18 may be composed of an incandescent bulb, a halogen lamp, a discharge bulb, or the like.
- the first light source 18 is mounted on the first heat sink 20.
- the first heat sink 20 is a heat radiating member that dissipates the heat of the first light source 18.
- the first heat sink 20 has a flat surface portion 20a, and the first light source 18 is mounted on the flat surface portion 20a.
- the reflector 22 is mounted on the flat surface portion 20a.
- the reflector 22 has a reflecting surface 22a.
- the reflective surface 22a is composed of, for example, a part of a rotating paraboloid.
- the reflector 22 has a positional relationship with the first light source 18 so that the light emitting element 18b is located near the focal point of the reflecting surface 22a.
- the first heat sink 20 has a protruding portion 20b that protrudes toward the front of the lamp. The tip of the protrusion 20b abuts on the outer peripheral portion of the first projection lens 26 to support the first projection lens 26.
- the lens holder 24 is connected to the protruding portion 20b.
- the lens holder 24 supports the first projection lens 26 by abutting on a portion of the outer peripheral portion of the first projection lens 26 that is not connected to the protrusion 20b.
- the entire outer peripheral portion of the first projection lens 26 is surrounded by the protruding portion 20b and the lens holder 24, and is fixed on the optical axis of the first irradiation portion 14.
- the first projection lens 26 is an optical member that irradiates the front of the lamp while diffusing the light of the first light source 18 in the vehicle width direction (horizontal direction).
- the first projection lens 26 is a cylindrical lens having a convex surface on the front side and a flat surface on the rear side and having a focused line extending in the horizontal direction.
- the light emitted from the first light source 18 is reflected toward the first projection lens 26 by the reflecting surface 22a of the reflector 22.
- the light reflected by the reflecting surface 22a is incident on the first projection lens 26 and is diffused in the vehicle width direction by the first projection lens 26 to irradiate the front region.
- the second irradiation unit 16 is composed of a light distribution variable lamp capable of irradiating the front region of the own vehicle with the visible light beam L1 having a variable intensity distribution.
- the second irradiation unit 16 of the present embodiment has a light source array 27.
- the light source array 27 includes a plurality of light sources 27a arranged in a matrix and a circuit board 27b for turning on and off each light source 27a independently of each other.
- Preferred examples of the light source 27a include semiconductor light emitting devices such as LEDs, LDs, organic or inorganic ELs.
- the ADB unit 4 is fixed to the lamp body 10 by a known connecting mechanism (not shown) in a state where the optical axis can be adjusted in the horizontal direction and the vertical direction.
- the ADB unit 4 is composed of a light distribution variable lamp capable of irradiating the front region of the own vehicle with a visible light beam L2 having a variable intensity distribution.
- the ADB unit 4 of the present embodiment is a so-called scan optical type lamp unit, which includes a second light source 28, a condensing lens 30, a rotating reflector 32, a second projection lens 34, and a second heat sink 36. , With a drive mechanism 38.
- the second light source 28 has a structure in which a plurality of light emitting elements 28b are arranged on the circuit board 28a. Each light emitting element 28b is individually configured to be able to turn on and off. As the light emitting element 28b, a semiconductor light emitting element such as an LED, LD, organic or inorganic EL can be used.
- the second light source 28 may be composed of an incandescent bulb, a halogen lamp, a discharge bulb, or the like.
- the condensing lens 30 is an optical member that changes the optical path of the light emitted from the second light source 28 and directs it toward the blade 32a of the rotary reflector 32.
- the rotation reflector 32 is an optical member that rotates about the rotation axis R while reflecting the light emitted from the second light source 28.
- the rotary reflector 32 has a plurality of blades 32a, a rotary cylinder 32b, and a motor 32c as a drive source.
- the plurality of blades 32a function as light reflecting surfaces and are fixed to the peripheral surface of the rotary cylinder 32b.
- the posture of the rotary cylinder 32b is determined so that the central axis of the cylinder coincides with the output shaft of the motor 32c, and the rotary cylinder 32b is fixed to the output shaft of the motor 32c.
- the output shaft of the motor 32c and the central shaft of the rotary cylinder 32b coincide with the rotary shaft R of the rotary reflector 32.
- the blade 32a turns in one direction around the rotation axis R.
- the blade 32a scans the front of the lamp with light by reflecting the light of the second light source 28 while turning.
- the second projection lens 34 is an optical member that projects the light reflected by the rotary reflector 32 in front of the lamp.
- the second projection lens 34 is made of, for example, a plano-convex aspherical lens.
- the second projection lens 34 of the present embodiment has a notch portion 34a in a part of the outer circumference. The presence of the notch 34a makes it difficult for the blade 32a of the rotary reflector 32 to interfere with the second projection lens 34, so that the second projection lens 34 and the rotary reflector 32 can be brought close to each other.
- the second heat sink 36 is a heat radiating member that dissipates the heat of the second light source 28.
- the second heat sink 36 is arranged on the side opposite to the rotary reflector 32 with the second light source 28 interposed therebetween.
- the second light source 28 is fixed to the surface of the second heat sink 36 facing the rotary reflector 32 side.
- the ADB unit 4 has a lamp bracket 40. Each member of the ADB unit 4 is supported by the lamp body 10 via the lamp bracket 40.
- the lamp bracket 40 is, for example, a plate-shaped member arranged so that the main surface faces the front-rear direction of the lamp, and the second heat sink 36 is fixed to the main surface facing the front side of the lamp.
- the second light source 28 is fixed to the lamp bracket 40 via the second heat sink 36.
- the rotary reflector 32 is fixed to the lamp bracket 40 via the pedestal 42.
- the second projection lens 34 is fixed to the lamp bracket 40 via a lens holder (not shown).
- the drive mechanism 38 is connected to the main surface of the lamp bracket 40 facing the rear side of the lamp.
- the drive mechanism 38 is composed of, for example, a leveling actuator.
- the drive mechanism 38 includes a rod 38a and a motor that expands and contracts the rod 38a in the front-rear direction of the lamp.
- the tip of the rod 38a is fixed to the lamp bracket 40.
- the ADB unit 4 is in a backward leaning posture when the rod 38a is extended. Further, the ADB unit 4 is in a forward leaning posture due to the contraction of the rod 38a. Therefore, the pitch angle of the optical axis of the ADB unit 4 can be leveled by driving the drive mechanism 38.
- the first irradiation unit 14 may be a so-called reflective (parabolic optical system) lamp unit. That is, the first irradiation unit 14 may have a reflector instead of the first projection lens 26 as an optical member that diffuses the light of the first light source 18 in the vehicle width direction.
- the reflector has a reflecting surface composed of, for example, a parabolic column surface, is arranged so that the light emitting element 18b is located near the focal point of the reflecting surface, and is fixed to the first heat sink 20.
- the second irradiation unit 16 may be a matrix type pattern forming device such as a DMD (Digital Mirror Device) or a liquid crystal device, or a scan optical type pattern forming device that scans the front of the vehicle with the light source light. It may be.
- the ADB unit 4 may be a light source array, a matrix-type pattern forming device, or the like. Further, the low beam unit 2 and the ADB unit 4 may be integrated.
- the vehicle detection device 6 detects a vehicle in front that exists in the area in front of the own vehicle. Vehicles in front include preceding vehicles and oncoming vehicles.
- the vehicle detection device 6 of the present embodiment has an image pickup device 43 as a detection means for a vehicle in front.
- the image pickup apparatus 43 has sensitivity in the visible light region and images the front region to generate an image IMG.
- the vehicle detection device 6 sends the image IMG generated by the image pickup device 43 to the light distribution control device 8 as a detection result.
- the vehicle detection device 6 may have other detection means such as a distance measuring sensor.
- the distance measuring sensor points the measurement direction to the front area and acquires information on the front area.
- the range-finding sensor can be configured by, for example, a millimeter-wave radar, LiDAR (Light Detection and Ringing or Laser Imaging Detection and Ringing) or the like.
- the distance measuring sensor is based on the time from the timing when the millimeter wave or light is transmitted to the front region to the detection of the reflected wave or the reflected light, and the presence of the vehicle in front associated with the reflected wave or the reflected light and the vehicle in front. You can get the distance to. Further, by accumulating such distance data in association with the detection position of the vehicle in front, it is possible to acquire information related to the movement of the vehicle in front.
- the light distribution control device 8 controls the formation of a light distribution pattern by the low beam unit 2 and the ADB unit 4 based on the detection result of the vehicle detection device 6.
- the light distribution control device 8 can be configured by a digital processor, for example, may be configured by a combination of a microcomputer including a CPU and a software program, or may be configured by an FPGA (Field Programmable Gate Array), an ASIC (Application Specified IC), or the like. It may be configured.
- the light distribution control device 8 operates by the integrated circuits constituting the light distribution control device 8 executing a program held in the memory.
- FIG. 2A is a schematic diagram showing a range in which the low beam unit 2 and the ADB unit 4 can irradiate light.
- FIG. 2B is a schematic diagram showing a low beam light distribution pattern P5 and an ADB light distribution pattern P6.
- FIG. 3 is a schematic diagram showing a light distribution pattern formed when a vehicle in front is detected.
- the relative positional relationship of each light irradiation range may deviate from the state shown in FIG. 2 (a).
- the relative positional relationship of each light distribution pattern may deviate from the state shown in FIGS. 2 (b) and 3.
- the light distribution pattern is grasped as a two-dimensional illuminance distribution of the irradiation pattern formed by each unit on the virtual vertical screen in front of the vehicle.
- the first irradiation unit 14 can form the diffusion pattern P1 as shown in FIGS. 2A and 2B by irradiating the light of the first light source 18.
- the diffusion pattern P1 is a pattern that extends below the H line having a pitch angle of 0 ° and extends to the outside in the vehicle width direction from the cut-off line CL described later.
- the second irradiation unit 16 can form the light distribution variable pattern P2 above the diffusion pattern P1 as shown in FIG. 2A. At least a part of the variable light distribution pattern P2 is formed in a region above the diffusion pattern P1.
- the variable light distribution pattern P2 has a structure in which a plurality of partial regions P3 arranged in a matrix are aggregated. As an example, each partial region P3 and each light source 27a have a one-to-one correspondence. By adjusting the lighting state of each light source 27a, the illuminance of each partial region P3 can be adjusted independently of each other.
- the second irradiation unit 16 can form the cut-off line pattern P4 as shown in FIG. 2B by adjusting the illuminance of each partial region P3.
- the cut-off line pattern P4 includes a cut-off line CL and a plurality of partial regions P3.
- the cut-off line CL is located above the diffusion pattern P1.
- the cut-off line CL is a boundary between a partial region P3 located above the cut-off line CL and having a relatively low illuminance (preferably 0 illuminance) and a partial region P3 located below the cut-off line CL and having a relatively high illuminance. And has a known shape.
- the cut-off line CL has a first portion extending horizontally on the oncoming lane side, a second portion extending horizontally on the own lane side and at a position higher than the first portion, and a first portion and a second portion. Includes a third part that extends diagonally between the two and connects the two.
- the plurality of partial regions P3 are arranged below the cut-off line CL along the cut-off line CL. Further, in the present embodiment, the plurality of partial regions P3 are also arranged in the direction orthogonal to the cut-off line CL.
- the low beam unit 2 of the present embodiment forms the low beam light distribution pattern P5 by synthesizing the diffusion pattern P1 and the cut-off line pattern P4. Therefore, the low beam light distribution pattern P5 includes a diffusion pattern P1 extending in the vehicle width direction, a cut-off line CL located above the diffusion pattern P1, and a plurality of partial regions P3 located below the cut-off line CL.
- the ADB unit 4 uses a combination of turning on and off the second light source 28, rotating the rotary reflector 32, and driving the drive mechanism 38 to provide an ADB light distribution pattern P6 as shown in FIGS. 2 (a) and 2 (b). Can be formed. At least a part of the light distribution pattern P6 for ADB is formed in the region above the cut-off line CL. As an example, the ADB light distribution pattern P6 is formed in a region where a known high beam light distribution pattern should be formed. Further, when the vehicle in front is detected by the vehicle detection device 6, the light distribution pattern P6 for ADB includes a second illuminance reducing unit 44 that overlaps with the vehicle in front as shown in FIG. The formation of the second illuminance reducing unit 44 is controlled by the light distribution control device 8.
- the light distribution control device 8 controls the formation of the light distribution pattern by the low beam unit 2 and the ADB unit 4 as follows when the vehicle in front is present. That is, the light distribution control device 8 grasps the position of the vehicle in front 100 based on the detection result of the vehicle detection device 6.
- the position of the vehicle in front 100 grasped by the light distribution control device 8 includes a position (angle) in the vehicle width direction of the own vehicle.
- the light distribution control device 8 acquires an image IMG as a detection result of the vehicle detection device 6, the position of the vehicle in front 100 can be grasped by known image processing or image analysis.
- the light distribution control device 8 defines a second illuminance reducing unit 44 that overlaps with the vehicle in front 100 in the light distribution pattern P6 for ADB. Then, the ADB unit 4 is controlled so as to form the ADB light distribution pattern P6 including the second illuminance reducing unit 44.
- the second illuminance reducing unit 44 of the present embodiment is a light-shielding unit having substantially zero illuminance.
- the second illuminance reducing unit 44 may be a dimming unit having a higher illuminance than the light-shielding portion and a lower illuminance than the other regions excluding the light-shielding portion.
- the illuminance of the second illuminance reducing unit 44 can be appropriately set based on an experiment or a simulation in consideration of the degree of glare received by the driver of the vehicle in front.
- the light distribution control device 8 defines a partial region P3 that overlaps with the vehicle in front 100 in the position in the vehicle width direction in the specific partial region P3a among the plurality of partial regions P3 in the low beam light distribution pattern P5. Therefore, the position of the specific partial region P3a in the vehicle width direction of the own vehicle overlaps with the position of the vehicle in front 100 in the vehicle width direction. Then, the low beam unit 2 is controlled so that the illuminance of the specific partial region P3a is lower than the illuminance of the other partial region P3. As a result, the first illuminance reducing portion 46 is formed in the specific partial region P3a.
- the first illuminance reducing unit 46 may be composed of a plurality of partial regions P3.
- the light distribution control device 8 of the present embodiment defines the first illuminance reduction unit 46 with reference to the position of the second illuminance reduction unit 44. That is, the light distribution control device 8 specifies a partial region P3 in which the position in the vehicle width direction overlaps with the position of the second illuminance reducing unit 44 in the vehicle width direction among the plurality of partial regions P3 in the low beam light distribution pattern P5.
- a first illuminance reducing unit 46 is formed in the specific partial region P3a by defining the region P3a.
- the light distribution control device 8 may directly determine the first illuminance reduction unit 46 from the detection result of the vehicle detection device 6.
- the range in the height direction of the first illuminance reducing unit 46 in other words, how far the partial region P3 from the cut-off line CL to the specific partial region P3a is determined based on experiments and simulations based on the pitching range of the own vehicle and the like. It can be set as appropriate.
- the light distribution control device 8 determines the illuminance of the first illuminance reducing unit 46 as follows.
- FIG. 4 is a schematic diagram for explaining an illuminance setting method of the first illuminance reducing unit 46.
- the light distribution control device 8 lowers the illuminance of the first illuminance reducing unit 46 as the distance from the own vehicle to the vehicle in front 100 becomes shorter.
- the light distribution control device 8 can grasp the distance to the vehicle in front 100 based on the detection result of the distance measuring sensor included in the vehicle detection device 6. Further, the vehicle in front 100 tends to have a larger dimension in the vehicle width direction on the image IMG as it approaches its own vehicle.
- the distance to the vehicle in front 100 can be calculated from the dimension of the vehicle in front 100 in the vehicle width direction in the image IMG.
- the light distribution control device 8 holds in advance a conversion table in which the distance to the vehicle in front 100 and the illuminance of the first illuminance reducing unit 46 are associated with each other, and the conversion table is used to be used by the first illuminance reducing unit 46. Determine the illuminance.
- the dimension of the second illuminance reducing unit 44 in the vehicle width direction may be regarded as the dimension of the vehicle in front 100 in the vehicle width direction.
- the distance from the own vehicle to the vehicle in front 100 can be estimated from the position of the vehicle in front 100 or the first illuminance reducing unit 46 in the vehicle width direction. That is, the vehicle in front 100 tends to move outward in the vehicle width direction with respect to the vehicle as it approaches the vehicle. When the vehicle in front 100 moves outward in the vehicle width direction, the first illuminance reducing unit 46 also moves outward in the vehicle width direction. Therefore, as another example, in the light distribution control device 8, the more the front vehicle 100 is located outside in the vehicle width direction, or the more the first illuminance reducing unit 46 is located outside in the vehicle width direction, the more the first illuminance reducing unit 46 is located. Decrease the illuminance of.
- the light distribution control device 8 holds in advance a conversion table in which the position of the vehicle in front 100 or the first illuminance reducing unit 46 in the vehicle width direction and the illuminance are associated with each other, and the first illuminance is used by using this conversion table.
- the illuminance of the reduction unit 46 is determined.
- the position of the vehicle in front 100 or the first illuminance reducing unit 46 in the vehicle width direction is based on, for example, the central portion in the vehicle width direction, the inner or outer end portion in the vehicle width direction, or the like.
- the position of the second illuminance reducing unit 44 in the vehicle width direction may be regarded as the position of the vehicle in front 100 in the vehicle width direction.
- the distance from the own vehicle to the vehicle in front 100 can be estimated from the dimension in the vehicle width direction of the vehicle 100 in front or the first illuminance reducing unit 46. That is, as described above, the vehicle in front 100 tends to have a larger dimension in the vehicle width direction on the image IMG as it approaches its own vehicle. As the vehicle in front 100 becomes larger, the first illuminance reducing unit 46 also becomes larger. Therefore, as another example, in the light distribution control device 8, the larger the dimension of the vehicle in front 100 in the vehicle width direction, or the larger the dimension of the first illuminance reducing unit 46 in the vehicle width direction, the larger the first illuminance reducing unit 46. Decrease the illuminance of.
- the light distribution control device 8 holds in advance a conversion table in which the dimensions of the vehicle in front 100 or the first illuminance reducing unit 46 in the vehicle width direction and the illuminance are associated with each other, and the first illuminance is used by using this conversion table.
- the illuminance of the reduction unit 46 is determined.
- the dimension of the second illuminance reducing unit 44 in the vehicle width direction may be regarded as the dimension of the vehicle in front 100 in the vehicle width direction.
- the illuminance of the first illuminance reducing unit 46 in each distance to the front vehicle 100, each position of the front vehicle 100 or the first illuminance reducing unit 46, and each size of the front vehicle 100 or the first illuminance reducing unit 46 is determined. It is possible to set appropriately based on experiments and simulations based on the degree of glare received by the driver of the vehicle in front.
- FIG. 5 is a flowchart showing an example of light distribution control executed by the light distribution control device 8. This flow is repeatedly executed at a predetermined timing when, for example, a light switch (not shown) gives an instruction to execute the light distribution control and the ignition is on. In the following description, the case where the image IMG is used as the detection result of the vehicle detection device 6 will be illustrated.
- the light distribution control device 8 determines whether or not the image IMG has been acquired (S101). If the image IMG has not been acquired (N in S101), this routine is terminated. When the image IMG is acquired (Y in S101), the light distribution control device 8 determines whether or not the vehicle in front 100 exists by using the image IMG (S102). When the vehicle in front 100 is present (Y in S102), the light distribution control device 8 includes a low beam light distribution pattern P5 including a first illuminance reducing unit 46 and an ADB light distribution pattern P6 including a second illuminance reducing unit 44. And are determined (S103).
- the light distribution control device 8 When the vehicle in front 100 does not exist (N in S102), the light distribution control device 8 includes a low beam light distribution pattern P5 that does not include the first illuminance reducing unit 46, and an ADB light distribution that does not include the second illuminance reducing unit 44. The pattern P6 is determined (S104). Then, the light distribution control device 8 controls the low beam unit 2 and the ADB unit 4 so as to form the determined low beam light distribution pattern P5 and ADB light distribution pattern P6 (S105), and ends this routine.
- the vehicle lighting system 1 includes a low beam unit 2 and a light distribution control device 8.
- the low beam unit 2 can form a low beam light distribution pattern P5 having a cut-off line CL, and in the low beam light distribution pattern P5, the illuminance of a plurality of partial regions P3 arranged along the cut-off line CL below the cut-off line. Can be adjusted independently of each other.
- the light distribution control device 8 forms a first illuminance reducing unit 46 in a partial region P3 (specific partial region P3a) in which the position in the vehicle width direction overlaps with the position of the vehicle in front 100 in the vehicle width direction among the plurality of partial regions P3.
- the low beam unit 2 is controlled so as to do so.
- the second illuminance reducing unit 44 By forming the second illuminance reducing unit 44 in the light distribution pattern P6 for ADB, the glare received by the driver of the vehicle 100 in front can be reduced by the light distribution pattern P6 for ADB.
- the low beam light distribution pattern P5 may be irradiated to the driver of the vehicle in front by pitching. Then, the driver of the vehicle in front 100 may receive glare due to the irradiation of the low beam light distribution pattern P5.
- the first illuminance reducing portion 46 is formed in the partial region P3 where the position in the vehicle width direction coincides with the vehicle in front 100, so that the first illuminance reduction unit 46 is formed when the own vehicle pitches.
- the illuminance reducing unit 46 can be superimposed on the vehicle in front 100.
- the glare received by the driver of the vehicle in front 100 can be reduced by the low beam light distribution pattern P5. Therefore, the glare received by the driver of the vehicle in front 100 can be further reduced as compared with the conventional ADB control.
- the shorter the distance to the vehicle in front 100 the lower the illuminance of the first illuminance reducing unit 46.
- by increasing the illuminance of the first illuminance reducing unit 46 corresponding to the distant front vehicle 100 it is possible to reduce the decrease in visibility of the driver of the own vehicle.
- the illuminance of the first illuminance reducing unit 46 is lowered as the front vehicle 100 or the first illuminance reducing unit 46 is located outside in the vehicle width direction.
- the light distribution control is performed by replacing the reference for determining the illuminance of the first illuminance reducing unit 46 with the position of the front vehicle 100 or the first illuminance reducing unit 46 in the vehicle width direction from the distance to the vehicle in front 100.
- the light distribution control device 8 of the present embodiment as another example, the larger the dimension of the front vehicle 100 or the first illuminance reducing unit 46 in the vehicle width direction, the lower the illuminance of the first illuminance reducing unit 46.
- the light distribution control is performed by replacing the reference for determining the illuminance of the first illuminance reducing unit 46 with the dimension in the vehicle width direction of the front vehicle 100 or the first illuminance reducing unit 46 from the distance to the vehicle in front 100. Can be simplified. As a result, it is possible to speed up the light distribution control and reduce the load on the light distribution control device 8.
- the low beam light distribution pattern P5 of the present embodiment has a diffusion pattern P1 spreading in the vehicle width direction, a cut-off line CL located above the diffusion pattern P1, and a plurality of partial regions located below the cut-off line CL. Including P3.
- the low beam unit 2 is independent of the first irradiation unit 14 which has an optical member (first projection lens 26 or reflector) that diffuses the light of the first light source 18 in the vehicle width direction and forms the diffusion pattern P1. It includes a cut-off line CL having a structure in which a plurality of light sources 27a capable of turning on and off are arranged, and a second irradiation unit 16 forming a plurality of partial regions P3.
- the first illuminance reducing portion 46 can be formed in the low beam light distribution pattern P5.
- the vehicle lighting system 1 of the present embodiment has an ADB light distribution pattern P6 including a second illuminance reducing unit 44 which is formed in a region above the cut-off line CL and overlaps with the vehicle in front 100.
- the ADB unit 4 that can be formed is provided.
- the light distribution control device 8 defines the second illuminance reducing unit 44 in the ADB light distribution pattern P6, and the position in the vehicle width direction among the plurality of partial regions P3 in the low beam light distribution pattern P5 is the vehicle width.
- the first illuminance reducing unit 46 is formed in the partial region P3 that overlaps with the position of the second illuminance reducing unit 44 in the direction.
- the first illuminance reducing unit 46 can be formed in the low beam light distribution pattern P5 in cooperation with the formation of the second illuminance reducing unit 44 in the ADB light distribution pattern P6.
- the light distribution control can be simplified, the speed of the light distribution control can be increased, and the load on the light distribution control device 8 can be reduced.
- the embodiment of the present invention has been described in detail above.
- the above-described embodiment merely shows a specific example in carrying out the present invention.
- the contents of the embodiments do not limit the technical scope of the present invention, and many design changes such as changes, additions, and deletions of components are made without departing from the ideas of the invention defined in the claims. Is possible.
- the new embodiment with the design change has the effects of the combined embodiment and the modification.
- the contents that can be changed in design are emphasized by adding notations such as "in the present embodiment” and "in the present embodiment”. Design changes are allowed even if there is no content. Any combination of the above components is also effective as an aspect of the present invention.
- the hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.
- the light distribution control device 8 is based on the distance from the own vehicle to the vehicle in front 100, or according to the position of the vehicle in front 100 or the first illuminance reducing unit 46 in the vehicle width direction, or the vehicle in front 100 or The illuminance of the first illuminance reducing unit 46 is changed according to the dimension of the first illuminance reducing unit 46 in the vehicle width direction.
- the present invention is not limited to this, and the light distribution control device 8 may uniformly set the illuminance of the first illuminance reducing unit 46 to zero.
- the light distribution control can be further simplified, the speed of the light distribution control can be increased, and the load on the light distribution control device 8 can be reduced more easily.
- the glare received by the driver of the vehicle in front can be further reduced.
- a plurality of low beam light distribution patterns (P5) having a cut-off line (CL) can be formed, and a plurality of low beam light distribution patterns (P5) arranged along the cut-off line (CL) below the cut-off line (CL).
- the low beam unit (2) which can adjust the illuminance of the partial region (P3) independently of each other, Of the plurality of partial regions (P3), the low beam unit (46) forms the first illuminance reducing portion (46) in the partial region (P3) whose position in the vehicle width direction overlaps with the position of the vehicle in front (100) in the vehicle width direction.
- a light distribution control device (8) for controlling 2) is provided.
- a plurality of low beam light distribution patterns (P5) having a cut-off line (CL) can be formed, and a plurality of low beam light distribution patterns (P5) arranged along the cut-off line (CL) below the cut-off line (CL).
- the low beam unit (46) forms the first illuminance reducing portion (46) in the partial region (P3) whose position in the vehicle width direction overlaps with the position of the vehicle in front (100) in the vehicle width direction. 2) to control, Light distribution control device (8).
- the position in the vehicle width direction is the front vehicle in the vehicle width direction (P5).
- the present invention can be used for a vehicle lamp system, a light distribution control device, and a light distribution control method.
- 1 vehicle lighting system 2 low beam unit, 4 ADB unit, 8 light distribution control device, 14 1st irradiation unit, 16 2nd irradiation unit, 44 2nd illuminance reduction unit, 46 1st illuminance reduction unit, 100 forward vehicle.
Abstract
Description
(項目1)
カットオフライン(CL)を有するロービーム用配光パターン(P5)を形成可能であるとともに、ロービーム用配光パターン(P5)における、カットオフライン(CL)の下方でカットオフライン(CL)に沿って並ぶ複数の部分領域(P3)の照度を互いに独立に調節可能なロービームユニット(2)と、
複数の部分領域(P3)のうち、車幅方向における位置が車幅方向における前方車両(100)の位置と重なる部分領域(P3)に第1照度低減部(46)を形成するようロービームユニット(2)を制御する配光制御装置(8)と、を備える、
車両用灯具システム(1)。
カットオフライン(CL)を有するロービーム用配光パターン(P5)を形成可能であるとともに、ロービーム用配光パターン(P5)における、カットオフライン(CL)の下方でカットオフライン(CL)に沿って並ぶ複数の部分領域(P3)の照度を互いに独立に調節可能なロービームユニット(2)を制御する配光制御装置(8)であって、
複数の部分領域(P3)のうち、車幅方向における位置が車幅方向における前方車両(100)の位置と重なる部分領域(P3)に第1照度低減部(46)を形成するようロービームユニット(2)を制御する、
配光制御装置(8)。
カットオフライン(CL)を有するロービーム用配光パターン(P5)の形成を制御する配光制御方法であって、
ロービーム用配光パターン(P5)における、カットオフライン(CL)の下方でカットオフライン(CL)に沿って並ぶ複数の部分領域(P3)のうち、車幅方向における位置が車幅方向における前方車両(100)の位置と重なる部分領域(P3)に第1照度低減部(46)を形成することを含む、
配光制御方法。
Claims (9)
- カットオフラインを有するロービーム用配光パターンを形成可能であるとともに、前記ロービーム用配光パターンにおける、前記カットオフラインの下方で前記カットオフラインに沿って並ぶ複数の部分領域の照度を互いに独立に調節可能なロービームユニットと、
前記複数の部分領域のうち、車幅方向における位置が車幅方向における前方車両の位置と重なる部分領域に第1照度低減部を形成するよう前記ロービームユニットを制御する配光制御装置と、を備える、
車両用灯具システム。 - 前記配光制御装置は、前記前方車両までの距離が近いほど前記第1照度低減部の照度を下げる、
請求項1に記載の車両用灯具システム。 - 前記配光制御装置は、前記前方車両または前記第1照度低減部が車幅方向外側に位置するほど前記第1照度低減部の照度を下げる、
請求項1に記載の車両用灯具システム。 - 前記配光制御装置は、前記前方車両または前記第1照度低減部の車幅方向の寸法が大きいほど前記第1照度低減部の照度を下げる、
請求項1に記載の車両用灯具システム。 - 前記配光制御装置は、前記第1照度低減部の照度をゼロにする、
請求項1に記載の車両用灯具システム。 - 前記ロービーム用配光パターンは、車幅方向に広がる拡散パターンと、前記拡散パターンの上方に位置する前記カットオフラインと、前記カットオフラインの下方に位置する前記複数の部分領域と、を含み、
前記ロービームユニットは、光源の光を車幅方向に拡散させる光学部材を有して前記拡散パターンを形成する第1照射部と、互いに独立に点消灯可能な複数の光源が配列された構造を有して前記カットオフラインおよび前記複数の部分領域を形成する第2照射部と、を含む、
請求項1乃至5のいずれか1項に記載の車両用灯具システム。 - 前記車両用灯具システムは、少なくとも一部が前記カットオフラインから上方の領域に形成されるとともに前記前方車両と重なる第2照度低減部を含むADB用配光パターンを形成可能なADBユニットを備え、
前記配光制御装置は、前記ADB用配光パターン中に前記第2照度低減部を定めるとともに、前記ロービーム用配光パターンにおける前記複数の部分領域のうち、車幅方向における位置が車幅方向における前記第2照度低減部の位置と重なる部分領域に第1照度低減部を形成する、
請求項1乃至6のいずれか1項に記載の車両用灯具システム。 - カットオフラインを有するロービーム用配光パターンを形成可能であるとともに、前記ロービーム用配光パターンにおける、カットオフラインの下方で前記カットオフラインに沿って並ぶ複数の部分領域の照度を互いに独立に調節可能なロービームユニットを制御する配光制御装置であって、
前記複数の部分領域のうち、車幅方向における位置が車幅方向における前方車両の位置と重なる部分領域に第1照度低減部を形成するよう前記ロービームユニットを制御する、
配光制御装置。 - カットオフラインを有するロービーム用配光パターンの形成を制御する配光制御方法であって、
前記ロービーム用配光パターンにおける、カットオフラインの下方で前記カットオフラインに沿って並ぶ複数の部分領域のうち、車幅方向における位置が車幅方向における前方車両の位置と重なる部分領域に第1照度低減部を形成することを含む、
配光制御方法。
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JP4415996B2 (ja) * | 2007-02-26 | 2010-02-17 | 株式会社日立製作所 | 車載用画像認識装置及び配光制御装置、並びに配光制御方法 |
DE102007040042B4 (de) * | 2007-08-24 | 2019-02-21 | HELLA GmbH & Co. KGaA | System zum Erzeugen eines Lichtbündels im Vorfeld eines Kraftfahrzeuges |
JP2013082267A (ja) * | 2011-10-06 | 2013-05-09 | Denso Corp | 車両用前照灯制御装置 |
FR2995267B1 (fr) * | 2012-09-07 | 2016-02-05 | Valeo Vision | Procede de commande d'un systeme d'eclairage adaptatif |
DE102014204614A1 (de) * | 2014-03-12 | 2015-09-17 | Automotive Lighting Reutlingen Gmbh | Verfahren zur Bereitstellung eines Frontlichtes für Kfz, sowie Beleuchtungseinrichtung für ein Kfz |
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2021
- 2021-12-06 EP EP21906407.8A patent/EP4265477A4/en active Pending
- 2021-12-06 JP JP2022569871A patent/JPWO2022131044A1/ja active Pending
- 2021-12-06 WO PCT/JP2021/044658 patent/WO2022131044A1/ja active Application Filing
- 2021-12-06 CN CN202180082570.8A patent/CN116568558A/zh active Pending
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2023
- 2023-06-08 US US18/331,287 patent/US20230311744A1/en active Pending
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JP2012134091A (ja) | 2010-12-24 | 2012-07-12 | Koito Mfg Co Ltd | 光学ユニット |
JP2016203863A (ja) * | 2015-04-24 | 2016-12-08 | 三菱電機株式会社 | 前照灯及びその点灯装置 |
JP2015149307A (ja) * | 2015-05-25 | 2015-08-20 | 株式会社小糸製作所 | 発光モジュールおよび車両用灯具 |
Non-Patent Citations (1)
Title |
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See also references of EP4265477A4 |
Also Published As
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JPWO2022131044A1 (ja) | 2022-06-23 |
EP4265477A4 (en) | 2024-03-27 |
EP4265477A1 (en) | 2023-10-25 |
CN116568558A (zh) | 2023-08-08 |
US20230311744A1 (en) | 2023-10-05 |
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